@article {243, title = {Application of {\textquotedblleft}Galileo High Accuracy Service{\textquotedblright} on Single-Point Positioning}, journal = {Sensors}, volume = {23}, year = {2023}, type = {Article}, doi = {10.3390/s23094223}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85159187764\&doi=10.3390\%2fs23094223\&partnerID=40\&md5=ae572f6afd7651a924051f8c60baeda9}, author = {Angrisano, Antonio and Ascione, Silvia and Cappello, Giovanni and Gioia, Ciro and Gaglione, Salvatore} } @conference {244, title = {Demonstrating Galileo Has in Single Point Positioning}, booktitle = {2023 IEEE International Workshop on Metrology for Automotive (MetroAutomotive)}, year = {2023}, doi = {10.1109/MetroAutomotive57488.2023.10219138}, author = {Cappello, Giovanni and Angrisano, Antonio and Ascione, Silvia and Del Pizzo, Silvio and Gioia, Ciro and Portelli, Gabriele and Susi, Melania and Gaglione, Salvatore} } @article {247, title = {An Enhanced Photogrammetric Approach for the Underwater Surveying of the Posidonia Meadow Structure in the Spiaggia Nera Area of Maratea}, journal = {Journal of Imaging}, volume = {9}, year = {2023}, pages = {113}, author = {Russo, Francesca and Del Pizzo, Silvio and Di Ciaccio, Fabiana and Troisi, Salvatore} } @article {245, title = {Galileo-Based Doppler Shifts and Time Difference Carrier Phase: A Static Case Demonstration}, journal = {Sensors}, volume = {23}, year = {2023}, pages = {6828}, author = {Gioia, Ciro and Angrisano, Antonio and Gaglione, Salvatore} } @article {234, title = {Hydrodynamic Design of Fixed Hydrofoils for Planing Craft}, journal = {Journal of Marine Science and Engineering}, volume = {11}, year = {2023}, type = {Article}, doi = {10.3390/jmse11020246}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149140611\&doi=10.3390\%2fjmse11020246\&partnerID=40\&md5=2cd47d37808972072d2e4a35a528c2ab}, author = {D{\textquoteright}Amato, Egidio and Notaro, Immacolata and Piscopo, Vincenzo and Scamardella, Antonio} } @article {238, title = {Motions Assessment Using a Time Domain Approach for a Research Ship in Antarctic Waters}, journal = {Journal of Marine Science and Engineering}, volume = {11}, year = {2023}, type = {Article}, doi = {10.3390/jmse11030558}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85151472339\&doi=10.3390\%2fjmse11030558\&partnerID=40\&md5=c0a42499d792671ff743c0f68da53828}, author = {Pennino, Silvia and Scamardella, Antonio} } @article {239, title = {Neustrelitz Total Electron Content Model for Galileo Performance: A Position Domain Analysis}, journal = {Sensors (Basel, Switzerland)}, volume = {23}, year = {2023}, type = {Article}, doi = {10.3390/s23073766}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85152305860\&doi=10.3390\%2fs23073766\&partnerID=40\&md5=fb7b82a05b8f07743fd2687f5cf0732c}, author = {Gioia, Ciro and Angrisano, Antonio and Gaglione, Salvatore} } @article {246, title = {Reconstructing anthropic coastal landscape of Campi Flegrei volcanic area (Southern Italy) during the Roman period from multi-technique surveys}, journal = {Journal of Maps}, year = {2023}, pages = {1{\textendash}14}, author = {Mattei, Gaia and Amato, Lucio and Caporizzo, Claudia and Cinque, Aldo and Pappone, Gerardo and Sorrentino, Alessia and Stocchi, Paolo and Troisi, Salvatore and Aucelli, Pietro PC} } @article {233, title = {Ultimate strength assessment of simply supported pitted platings: A new stochastic approach based on Monte Carlo simulation}, journal = {Marine Structures}, volume = {87}, year = {2023}, type = {Article}, doi = {10.1016/j.marstruc.2022.103312}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85140736245\&doi=10.1016\%2fj.marstruc.2022.103312\&partnerID=40\&md5=d5db091d4192716c279eaf3b3317fbe1}, author = {Piscopo, V. and Scamardella, A.} } @conference {227, title = {DOP analysis using AIS R-MODE stations combined with GNSS satellites into the Venice Lagoon}, booktitle = {2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022 - Proceedings}, year = {2022}, doi = {10.1109/MetroSea55331.2022.9950793}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85143665232\&doi=10.1109\%2fMetroSea55331.2022.9950793\&partnerID=40\&md5=73ad612f4cb4edc5ec1f0c12ca474447}, author = {Angrisano, Antonio and Ascione, Silvia and Cappello, Giovanni and Del Pizzo, Silvio and Messina, Sebastiano and Gaglione, Salvatore} } @article {218, title = {The EGNOS Augmentation in Maritime Navigation}, journal = {Sensors}, volume = {22}, year = {2022}, doi = {10.3390/s22030775}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123544870\&doi=10.3390\%2fs22030775\&partnerID=40\&md5=4f9f702ca89cf3ec4f08c1e47634a44f}, author = {Innac, A. and Angrisano, A. and Del Pizzo, S. and Cappello, G. and Gaglione, S.} } @conference {228, title = {Enhanced geomatic techniques for the deformation survey of ship platings in a real environment}, booktitle = {2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022 - Proceedings}, year = {2022}, doi = {10.1109/MetroSea55331.2022.9950828}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85143729681\&doi=10.1109\%2fMetroSea55331.2022.9950828\&partnerID=40\&md5=3bb6e244b742f567a5b21f7d191fb83f}, author = {Ascione, Silvia and Del Pizzo, Silvio and Gaglione, Salvatore and Piscopo, Vincenzo and Troisi, Salvatore} } @article {231, title = {Fatigue Assessment of Moorings for Floating Offshore Wind Turbines by Advanced Spectral Analysis Methods}, journal = {Journal of Marine Science and Engineering}, volume = {10}, year = {2022}, type = {Article}, doi = {10.3390/jmse10010037}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122727156\&doi=10.3390\%2fjmse10010037\&partnerID=40\&md5=6febaa2c13717be4da55277ec645b29d}, author = {Piscopo, Vincenzo and Scamardella, Antonio and Rossi, Giovanni Battista and Crenna, Francesco and Berardengo, Marta} } @article {237, title = {A flexible and swift approach for 3D image{\textendash}based survey in a cave}, journal = {Applied Geomatics}, volume = {14}, year = {2022}, pages = {5 {\textendash} 19}, type = {Article}, doi = {10.1007/s12518-020-00309-4}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084596892\&doi=10.1007\%2fs12518-020-00309-4\&partnerID=40\&md5=b4e5eb343d5ab1cdd990f9f70a0466fd}, author = {Alessandri, L. and Baiocchi, V. and Del Pizzo, S. and Di Ciaccio, F. and Onori, M. and Rolfo, M.F. and Troisi, S.} } @article {230, title = {Measurement of sea waves}, journal = {Sensors}, volume = {22}, year = {2022}, type = {Article}, doi = {10.3390/s22010078}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121513512\&doi=10.3390\%2fs22010078\&partnerID=40\&md5=ac685f481b19ebcd98336868ac81ad97}, author = {Rossi, Giovanni Battista and Cannata, Andrea and Iengo, Antonio and Migliaccio, Maurizio and Nardone, Gabriele and Piscopo, Vincenzo and Zambianchi, Enrico} } @conference {236, title = {Monitoring the Posidonia Meadows structure through underwater photogrammetry: A case study}, booktitle = {2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2022 - Proceedings}, year = {2022}, doi = {10.1109/MetroSea55331.2022.9950873}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85143730388\&doi=10.1109\%2fMetroSea55331.2022.9950873\&partnerID=40\&md5=972b07d1b354f67ed41b43f8da074c5d}, author = {Russo, Francesca and Del Pizzo, Silvio and Di Ciaccio, Fabiana and Troisi, Salvatore} } @article {229, title = {A New Orbiting Deployable System for Small Satellite Observations for Ecology and Earth Observation}, journal = {Remote Sensing}, volume = {14}, year = {2022}, type = {Article}, doi = {10.3390/rs14092066}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85130569568\&doi=10.3390\%2frs14092066\&partnerID=40\&md5=c402d749c1d839052ece462d7d7c81f0}, author = {Martellato, Elena and Piccirillo, Alice Maria and Ferraioli, Giampaolo and Rotundi, Alessandra and Della Corte, Vincenzo and Palumbo, Pasquale and Alcaras, Emanuele and Appolloni, Luca and Aulicino, Giuseppe and Bertini, Ivano and Capozzi, Vincenzo and Catucci, Elena and Dionnet, Zelia and Di Palma, Pasquale and Esposito, Flavio and Ferrentino, Emanuele and Innac, Anna and Inno, Laura and Pennino, Silvia and Saviano, Simona and Tirimberio, Giuseppina and Campopiano, Stefania and Chianese, Elena and Franzese, Pier Paolo and Fusco, Giannetta and Gaglione, Salvatore and Iadicicco, Agostino and Nunziata, Ferdinando and Parente, Claudio and Piscopo, Vincenzo and Riccio, Angelo and Russo, Giovanni Fulvio and Zambianchi, Enrico} } @conference {232, title = {Sensitivity Analysis of a Marine Gasoline Engine: From Power to Emissions}, booktitle = {Progress in Marine Science and Technology}, year = {2022}, doi = {10.3233/PMST220026}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138172002\&doi=10.3233\%2fPMST220026\&partnerID=40\&md5=6a23a661e912bb65f5bdb7b76ada7bf0}, author = {Mocerino, Luigia and Piscopo, Vincenzo and Scamardella, Antonio} } @article {220, title = {Smartphone GNSS Performance in an Urban Scenario with RAIM Application}, journal = {Sensors}, volume = {22}, year = {2022}, doi = {10.3390/s22030786}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122911041\&doi=10.3390\%2fs22030786\&partnerID=40\&md5=2257427f4a504f1e14a0ee8098b8517e}, author = {Angrisano, A. and Gaglione, S.} } @article {235, title = {Solutions and limitations of the geomatic survey of an archaeological site in hard to access areas with a latest generation smartphone: the example of the Intihuatana stone in Machu Picchu (Peru)}, journal = {Acta IMEKO}, volume = {11}, year = {2022}, type = {Article}, doi = {10.21014/acta_imeko.v11i1.1117}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128163308\&doi=10.21014\%2facta_imeko.v11i1.1117\&partnerID=40\&md5=8310bea6a52fc77f2b4da19e4bf790fd}, author = {Baiocchi, Valerio and Pizzo, Silvio Del and Monti, Felicia and Pugliano, Giovanni and Onori, Matteo and Robustelli, Umberto and Troisi, Salvatore and Vatore, Felicia and Trujillo, Francisco James Le{\'o}n} } @article {226, title = {Time-Differenced Carrier Phase Technique for Precise Velocity Estimation on an Android Smartphone}, journal = {Sensors}, volume = {22}, year = {2022}, type = {Article}, doi = {10.3390/s22218514}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85141576490\&doi=10.3390\%2fs22218514\&partnerID=40\&md5=58bb5fe85b4ff343feeb6f5af0ade089}, author = {Angrisano, Antonio and Cappello, Giovanni and Del Pizzo, Silvio and Gaglione, Salvatore} } @article {197, title = {Danae++: A smart approach for denoising underwater attitude estimation}, journal = {Sensors}, volume = {21}, year = {2021}, pages = {1-21}, doi = {10.3390/s21041526}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101177509\&doi=10.3390\%2fs21041526\&partnerID=40\&md5=aacf41a8b089e0745bbee8259b6a4861}, author = {Russo, P. and Di Ciaccio, F. and Troisi, S.} } @conference {194, title = {EGNOS Performances assessment in maritime navigation}, booktitle = {2021 International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea)}, year = {2021}, doi = {10.1109/MetroSea52177.2021.9611552}, author = {Innac, Anna and Angrisano, Antonio and Pizzo, Silvio Del and Vultaggio, Mario and Gaglione, Salvatore} } @article {172, title = {A Kalman filter single point positioning for maritime applications using a smartphone}, journal = {Geographia Technica}, volume = {16}, year = {2021}, pages = {15-29}, doi = {10.21163/GT_2021.163.02}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104946254\&doi=10.21163\%2fGT_2021.163.02\&partnerID=40\&md5=ee32f4e7818feeb22ee5c1c25d7e0419}, author = {Innac, A. and Angrisano, A. and Dardanelli, G. and Della Corte, V. and Martellato, E. and Rotundi, A. and Ferraioli, G. and Palumbo, P. and Gaglione, S.} } @article {196, title = {Monitoring marine environments with Autonomous Underwater Vehicles: A bibliometric analysis}, journal = {Results in Engineering}, volume = {9}, year = {2021}, doi = {10.1016/j.rineng.2021.100205}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100073203\&doi=10.1016\%2fj.rineng.2021.100205\&partnerID=40\&md5=212378979419f0ca269c82a38c140075}, author = {Di Ciaccio, F. and Troisi, S.} } @conference {193, title = {Photogrammetry applications on stranded cetaceans: fin whale case study and preliminary results.}, booktitle = {2021 International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea)}, year = {2021}, doi = {10.1109/MetroSea52177.2021.9611588}, author = {Pizzo, Silvio Del and Troisi, Salvatore and Testa, Rosa Linda and Sciancalepore, Giuseppe and Pedrotti, Davide and Pietroluongo, Guido} } @conference {192, title = {A preliminary study on an optical system for nautical and maritime traffic monitoring}, booktitle = {2021 International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea)}, year = {2021}, doi = {10.1109/MetroSea52177.2021.9611575}, author = {Pizzo, Silvio Del and Troisi, Salvatore and Angrisano, Antonio and Ciaccio, Fabiana Di and Gaglione, Salvatore} } @article {195, title = {Reconstructing the Late Pleistocene {\textendash} Anthropocene interaction between the neotectonic and archaeological landscape evolution in the Apennines (La Sassa cave, Italy)}, journal = {Quaternary Science Reviews}, volume = {265}, year = {2021}, doi = {10.1016/j.quascirev.2021.107067}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109153117\&doi=10.1016\%2fj.quascirev.2021.107067\&partnerID=40\&md5=3b194a70e40e6d3cab1df4851e58b920}, author = {Alessandri, L. and Cardello, G.L. and Attema, P.A.J. and Baiocchi, V. and De Angelis, F. and Del Pizzo, S. and Di Ciaccio, F. and Fiorillo, A. and Gatta, M. and Monti, F. and Onori, M. and Rolfo, M.F. and Romboni, M. and Sottili, G. and Troisi, S.} } @article {171, title = {Sea State Monitoring by Ship Motion Measurements Onboard a Research Ship in the Antarctic Waters}, journal = {Journal of Marine Science and Engineering}, volume = {9}, year = {2021}, pages = {64}, abstract = {

A parametric wave spectrum resembling procedure is applied to detect the sea state parameters, namely the wave peak period and significant wave height, based on the measurement and analysis of the heave and pitch motions of a vessel in a seaway, recorded by a smartphone located onboard the ship. The measurement system makes it possible to determine the heave and pitch acceleration spectra of the reference ship in the encounter frequency domain and, subsequently, the absolute sea spectra once the ship motion transfer functions are provided. The measurements have been carried out onboard the research ship {\textquotedblleft}Laura Bassi{\textquotedblright}, during the oceanographic campaign in the Antarctic Ocean carried out in January and February 2020. The resembled sea spectra are compared with the weather forecast data, provided by the global-WAM (GWAM) model, in order to validate the sea spectrum resembling procedure.

}, issn = {2077-1312}, doi = {10.3390/jmse9010064}, url = {https://www.mdpi.com/2077-1312/9/1/64}, author = {Pennino, Silvia and Angrisano, Antonio and Corte, Vincenzo Della and Ferraioli, Giampaolo and Gaglione, Salvatore and Innac, Anna and Martellato, Elena and Palumbo, Pasquale and Piscopo, Vincenzo and Rotundi, Alessandra and Scamardella, Antonio} } @conference {164, title = {Absolute sea spectrum resampling from encounter wave time history}, booktitle = {2019 IMEKO TC19 International Workshop on Metrology for the Sea: Learning to Measure Sea Health Parameters, MetroSea 2019}, year = {2020}, isbn = {9789299008423}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081048777\&partnerID=40\&md5=9d4ba859d16567adf7b39636ebaff725}, author = {Gaglione, S. and Pennino, S. and Piscopo, V. and Scamardella, A.} } @article {201, title = {Ancient coastal changes due to ground movements and human interventions in the roman portus julius (Pozzuoli Gulf, Italy): Results from photogrammetric and direct surveys}, journal = {Water (Switzerland)}, volume = {12}, year = {2020}, doi = {10.3390/w12030658}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082705897\&doi=10.3390\%2fw12030658\&partnerID=40\&md5=d9bf0d02274de8fc28558d919b54f019}, author = {Aucelli, P.P.C. and Mattei, G. and Caporizzo, C. and Cinque, A. and Troisi, S. and Peluso, F. and Stefanile, M. and Pappone, G.} } @conference {221, title = {Assessment of shoreline detection using UAV}, booktitle = {MetroSea 2020 - TC19 International Workshop on Metrology for the Sea}, year = {2020}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123306702\&partnerID=40\&md5=a1327b0f2f73c11a700c7c1e82af4feb}, author = {Pizzo, S.D. and Angrisano, A. and Gaglione, S. and Troisi, S.} } @article {167, title = {Development of a new ship adaptive weather routing model based on seakeeping analysis and optimization}, journal = {Journal of Marine Science and Engineering}, volume = {8}, year = {2020}, month = {2020}, isbn = {20771312 (ISSN)}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084633120\&doi=10.3390\%2fJMSE8040270\&partnerID=40\&md5=73cbf2170e262702db1ad7f10416663a}, author = {Pennino, S. and Gaglione, S. and Innac, A. and Piscopo, V. and Scamardella, A.} } @article {204, title = {A flexible and swift approach for 3D image{\textendash}based survey in a cave}, journal = {Applied Geomatics}, year = {2020}, doi = {10.1007/s12518-020-00309-4}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084596892\&doi=10.1007\%2fs12518-020-00309-4\&partnerID=40\&md5=b4e5eb343d5ab1cdd990f9f70a0466fd}, author = {Alessandri, L. and Baiocchi, V. and Del Pizzo, S. and Di Ciaccio, F. and Onori, M. and Rolfo, M.F. and Troisi, S.} } @conference {200, title = {THE FUSION of EXTERNAL and INTERNAL 3D PHOTOGRAMMETRIC MODELS AS A TOOL to INVESTIGATE the ANCIENT HUMAN/CAVE INTERACTION: The la SASSA CASE STUDY}, booktitle = {International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives}, year = {2020}, doi = {10.5194/isprs-archives-XLIII-B2-2020-1443-2020}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091071189\&doi=10.5194\%2fisprs-archives-XLIII-B2-2020-1443-2020\&partnerID=40\&md5=e421ade7c6546555e9b8d1fd5d8838c9}, author = {Alessandri, L. and Baiocchi, V. and Del Pizzo, S. and Di Ciaccio, F. and Onori, M. and Rolfo, M.F. and Troisi, S.} } @conference {163, title = {GPS precise positioning techniques for remote marine applications}, booktitle = {2019 IMEKO TC19 International Workshop on Metrology for the Sea: Learning to Measure Sea Health Parameters, MetroSea 2019}, year = {2020}, isbn = {9789299008423}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081056598\&partnerID=40\&md5=e70d4becb4ed1549b1a700a1708cab1d}, author = {Innac, A. and Angrisano, A. and Gaglione, S. and Crocetto, N.} } @article {165, title = {Identification of Walker Identity Using Smartphone Sensors: An Experiment Using Ensemble Learning}, journal = {IEEE Access}, volume = {8}, year = {2020}, pages = {27435-27447}, issn = {21693536}, doi = {10.1109/ACCESS.2020.2971693}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85081113005\&doi=10.1109\%2fACCESS.2020.2971693\&partnerID=40\&md5=6df7e32b9ef02594f961428d88e5abc3}, author = {Angrisano, A. and Bernardi, M.L. and Cimitile, M. and Gaglione, S. and Vultaggio, M.} } @article {202, title = {Innovative Technologies for Coastal Paleo-Landscape Reconstruction and Paleo-Sea Level Measuring}, journal = {Communications in Computer and Information Science}, volume = {1246}, year = {2020}, pages = {244-255}, doi = {10.1007/978-3-030-62800-0_19}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097429704\&doi=10.1007\%2f978-3-030-62800-0_19\&partnerID=40\&md5=7f1c19ead6e5a2f361a9b5e9b2f99b6f}, author = {Mattei, G. and Aucelli, P.P.C. and Caporizzo, C. and Peluso, F. and Pappone, G. and Troisi, S.} } @article {198, title = {Integrated geomatic techniques for georeferencing and reconstructing the position of underground archaeological sites: The case study of the augustus sundial (rome)}, journal = {Remote Sensing}, volume = {12}, year = {2020}, pages = {1-17}, doi = {10.3390/rs12244064}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098263076\&doi=10.3390\%2frs12244064\&partnerID=40\&md5=72ed63037764b198293a3607405fc641}, author = {Baiocchi, V. and Brigante, R. and Del Pizzo, S. and Giannone, F. and Onori, M. and Radicioni, F. and Stoppini, A. and Tosi, G. and Troisi, S. and Baumgartner, M.} } @article {161, title = {A Machine Learning Approach for Walker Identification Using Smartphone Sensors}, journal = {Studies in Computational Intelligence}, volume = {880}, year = {2020}, pages = {229-247}, issn = {1860949X}, doi = {10.1007/978-3-030-36617-9_14}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078103442\&doi=10.1007\%2f978-3-030-36617-9_14\&partnerID=40\&md5=d6b9b3418dc0a28bea3cf61f6f4c08c5}, author = {Angrisano, A. and Ardimento, P. and Bernardi, M.L. and Cimitile, M. and Gaglione, S.} } @article {169, title = {Machine learning based LOS/NLOS classifier and robust estimator for GNSS shadow matching}, volume = {1}, year = {2020}, month = {2020/05/11}, pages = {15}, abstract = {

Global Navigation Satellites Systems (GNSS) is frequently used for positioning services in various applications, e.g., pedestrian and vehicular navigation. However, it is well-known that GNSS positioning performs unreliably in urban environments. GNSS shadow matching is a method of improving accuracy in the cross-street direction. Initial position and classification of observed satellite visibility between line-of-sight (LOS) and non-line-of-sight (NLOS) are essential for its performance. For the conventional LOS/NLOS classification, the classifiers are based on a single feature, extracted from raw GNSS measurements, such as signal noise ratio, pseudorange, elevation angle, etc. Especially in urban canyons, these measurements are unstable and unreliable due to the signal reflection and refraction from the surrounding buildings. Besides, the conventional least square approach for positioning is insufficient to provide accurate initialization for shadow matching in urban areas. In our study, shadow matching is improved using the initial position from robust estimator and the satellite visibility determined by support vector machine (SVM). The robust estimator has an improved positioning accuracy and the classification rate of SVM classification can reach 91.5\% in urban scenarios. An important issue is related to satellites with ultra-high or low elevation angles and satellites near the building boundary that are very likely to be misclassified. By solving this problem, the SVM classification shows the potential of about 90\% classification accuracy for various urban cases. With the help of these approaches, the shadow matching has a mean error of 10.27\ m with 1.44\ m in the cross-street direction; these performances are suitable for urban positioning.

}, isbn = {2662-1363}, url = {https://doi.org/10.1186/s43020-020-00016-w}, author = {Xu, Haosheng and Angrisano, Antonio and Gaglione, Salvatore and Hsu, Li-Ta} } @article {162, title = {A new wave spectrum resembling procedure based on ship motion analysis}, journal = {Ocean Engineering}, volume = {201}, year = {2020}, issn = {00298018}, doi = {10.1016/j.oceaneng.2020.107137}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079837856\&doi=10.1016\%2fj.oceaneng.2020.107137\&partnerID=40\&md5=a1e0e8d7d2c0a6ab3b7a53fb7151c7a3}, author = {Piscopo, V. and Scamardella, A. and Gaglione, S.} } @article {159, title = {PANG-NAV: a tool for processing GNSS measurements in SPP, including RAIM functionality}, journal = {GPS Solutions}, volume = {24}, year = {2020}, issn = {10805370}, doi = {10.1007/s10291-019-0935-y}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075862495\&doi=10.1007\%2fs10291-019-0935-y\&partnerID=40\&md5=5384d59813e59778298757bc15fbfe3b}, author = {Angrisano, A. and Gaglione, S. and Crocetto, N. and Vultaggio, M.} } @article {170, title = {Performance assessment of PPP surveys with open source software using the GNSS GPS-GLONASS-Galileo constellations}, journal = {Applied Sciences (Switzerland)}, volume = {10}, year = {2020}, issn = {20763417}, doi = {10.3390/APP10165420}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089897851\&doi=10.3390\%2fAPP10165420\&partnerID=40\&md5=840e9e4b552a1db3893cbd9690964200}, author = {Angrisano, A. and Dardanelli, G. and Innac, A. and Pisciotta, A. and Pipitone, C. and Gaglione, S.} } @article {203, title = {A Preliminary Study on Attitude Measurement Systems Based on Low Cost Sensors}, journal = {Communications in Computer and Information Science}, volume = {1246}, year = {2020}, pages = {103-115}, doi = {10.1007/978-3-030-62800-0_9}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85097387204\&doi=10.1007\%2f978-3-030-62800-0_9\&partnerID=40\&md5=df40a6ba8024aca29b08a45d61cafb52}, author = {Di Ciaccio, F. and Gaglione, S. and Troisi, S.} } @conference {222, title = {Sea state monitoring based on ship motion measurements onboard an icebreaker in the Antarctic waters}, booktitle = {MetroSea 2020 - TC19 International Workshop on Metrology for the Sea}, year = {2020}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123284262\&partnerID=40\&md5=3dfc9622ecf64d700fc7bad350f9b1d1}, author = {Pennino, S. and Angrisano, A. and Gaglione, S. and Innac, A. and Piscopo, V. and Scamardella, A.} } @conference {199, title = {Use of the sensors of a latest generation mobile phone for the three-dimensional reconstruction of an archaeological monument: The survey of the Intihuatana stone in Machu Picchu (Peru{\textquoteright})}, booktitle = {IOP Conference Series: Materials Science and Engineering}, year = {2020}, doi = {10.1088/1757-899X/949/1/012106}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096880615\&doi=10.1088\%2f1757-899X\%2f949\%2f1\%2f012106\&partnerID=40\&md5=a6379a25e3e08aabb241ca4063a4af96}, author = {Baiocchi, V. and Del Pizzo, S. and Pugliano, G. and Onori, M. and Robustelli, U. and Troisi, S. and Vatore, F. and Le{\'o}n Trujillo, F.J.} } @article {154, title = {Fuzzy logic applied to GNSS}, journal = {Measurement: Journal of the International Measurement Confederation}, volume = {136}, year = {2019}, pages = {314-322}, abstract = {

Limiting the weight of bad signals can recover the accuracy of the GNSS solution in signal-degraded scenarios, where multipath reflections and obstructions can easily generate multiple blunders. The fuzzy integration of the available information related to the quality of the received signals is exploited in this paper to derive an effective weighting schema in a Weighted Least Square estimation process. To validate the proposed schema, its performance in the position domain is compared to the most common weighting strategies proposed in the literature, based on GPS data collected through two different High Sensitivity GNSS receivers placed in urban canyons and processed in Single Point Positioning using pseudorange measurements. {\textcopyright} 2019 Elsevier Ltd

}, doi = {10.1016/j.measurement.2018.12.103}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059515503\&doi=10.1016\%2fj.measurement.2018.12.103\&partnerID=40\&md5=c03a37912a86da8003de11f16bf3086d}, author = {Gaglione, S. and Angrisano, A. and Innac, A. and Del Pizzo, S. and Maratea, A.} } @mastersthesis {153, title = {Machine Learning application to context recognition of a smartphone in Pedestrian Navigation}, year = {2019}, author = {Francesco Giordano} } @conference {156, title = {Mitigation of leverage observation effects in GNSS robust positioning}, booktitle = {2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2018 - Proceedings}, year = {2019}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, organization = {Institute of Electrical and Electronics Engineers Inc.}, abstract = {

Nowadays GNSSs are the most commonly used systems for localization; they are able to provide user absolute position with metric accuracy in benign environment, i.e. in scenarios without significant obstacles surrounding the user. On the other hand, in harsh scenarios GNSS performance are degraded, owing to the shortage of available measurements and/or to the presence of blunders among them. The blunder issue is usually addressed through RAIM techniques or robust estimation; the latter approach demonstrates often better performance, but suffers anyway the cases of multiple blunders and low redundancy. M-estimators, a particular class of robust estimators, are based on the minimization of functions of least squares residuals. A possible way to strengthen a M-estimator is to take into account for leverage observations, defined as measurements with high potential to affect estimation results. In this work, the Huber M-estimator is adapted to include information about leverage observations and is used to process GPS measurements, collected in harsh environment. The obtained results are very promising, with position errors reduction even beyond 50\% with respect to classical Huber method. {\textcopyright} 2018 IEEE.

}, doi = {10.1109/MetroSea.2018.8657870}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063866479\&doi=10.1109\%2fMetroSea.2018.8657870\&partnerID=40\&md5=05cadc7af731b0d1dffe0c904d6ac49c}, author = {Angrisano, A. and Gaglione, S.} } @conference {155, title = {Multi-GNSS single frequency precise point positioning}, booktitle = {2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2018 - Proceedings}, year = {2019}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, organization = {Institute of Electrical and Electronics Engineers Inc.}, abstract = {

Single Frequency-Precise Point Positioning (SF-PPP) processing strategy is a hot topic in GNSS context, owing to the advantages of a stand-alone, accurate and cost efficiency positioning. However, the existing SF-PPP methods can be hardly implemented for high-precision applications due to the large error sources that affect accuracy and converge time of PPP solution. For this aim, the paper proposes a SF-PPP approach based on the processing of code and carrier phase measurements from multi-GNSS constellation. The algorithm is tested using a static data collection carried out in an open-sky scenario. Results show a decimeter level accuracy on horizontal and vertical components of the position. {\textcopyright} 2018 IEEE.

}, doi = {10.1109/MetroSea.2018.8657857}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063905389\&doi=10.1109\%2fMetroSea.2018.8657857\&partnerID=40\&md5=fdadaaf98244b0abb0fb6dd39560b864}, author = {Innac, A. and Gaglione, S. and Angrisano, A.} } @conference {208, title = {Multiscale reconstruction of natural and archaeological underwater landscape by optical and acoustic sensors}, booktitle = {2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2018 - Proceedings}, year = {2019}, doi = {10.1109/MetroSea.2018.8657872}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062507512\&doi=10.1109\%2fMetroSea.2018.8657872\&partnerID=40\&md5=f08590876fd52ce78acbef63d673f66a}, author = {Mattei, G. and Troisi, S. and Aucelli, P.P.C. and Pappone, G. and Peluso, F. and Stefanile, M.} } @conference {206, title = {Optimization of the maritime signaling in the Venetian Lagoon}, booktitle = {2018 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters, MetroSea 2018 - Proceedings}, year = {2019}, doi = {10.1109/MetroSea.2018.8657844}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063895417\&doi=10.1109\%2fMetroSea.2018.8657844\&partnerID=40\&md5=e8b850e98d7fec382c94d7fd1d19d08c}, author = {Di Ciaccio, F. and Menegazzo, P. and Troisi, S.} } @article {207, title = {Optimization of the maritime signaling system in the lagoon of venice}, journal = {Sensors (Switzerland)}, volume = {19}, year = {2019}, doi = {10.3390/s19051216}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062827774\&doi=10.3390\%2fs19051216\&partnerID=40\&md5=cd4fcf134389b327a73689ca1733f7ba}, author = {Di Ciaccio, F. and Menegazzo, P. and Troisi, S.} } @conference {157, title = {Pedestrian localization with PDR supplemented by GNSS}, booktitle = {European Navigation Conference, ENC 2019}, year = {2019}, isbn = {9781538694732}, doi = {10.1109/EURONAV.2019.8714150}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067107796\&doi=10.1109\%2fEURONAV.2019.8714150\&partnerID=40\&md5=a7efc198b4f6ca91b8bcdfb0afd7fe5f}, author = {Angrisano, A. and Vultaggio, M. and Gaglione, S. and Crocetto, N.} } @article {168, title = {Performance comparison among multi-GNSS single frequency precise point positioning techniques}, journal = {Kartografija i Geoinformacije}, volume = {18}, year = {2019}, month = {2019}, pages = {80 - 99}, isbn = {1333896X (ISSN)}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084345198\&doi=10.32909\%2fkg.18.32.6\&partnerID=40\&md5=b97ced4c8edcbfed63867b718ed8a6e8}, author = {Innac, A. and Angrisano, A. and Gaglione, S. and Vultaggio, M. and Crocetto, N.} } @conference {209, title = {PHOTOGRAMMETRIC SURVEY with FISHEYE LENS for the CHARACTERIZATION of the la SASSA CAVE}, booktitle = {ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences}, year = {2019}, doi = {10.5194/isprs-archives-XLII-2-W9-25-2019}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065400824\&doi=10.5194\%2fisprs-archives-XLII-2-W9-25-2019\&partnerID=40\&md5=335e04bffaebad667be2a67ecb809351}, author = {Alessandri, L. and Baiocchi, V. and Del Pizzo, S. and Rolfo, M.F. and Troisi, S.} } @conference {158, title = {Robust Kalman Filter applied to GNSS positioning in harsh environment}, booktitle = {European Navigation Conference, ENC 2019}, year = {2019}, isbn = {9781538694732}, doi = {10.1109/EURONAV.2019.8714132}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067099572\&doi=10.1109\%2fEURONAV.2019.8714132\&partnerID=40\&md5=c0cb8dcff95f925439f0bd622391205c}, author = {Gaglione, S. and Angrisano, A. and Crocetto, N.} } @conference {205, title = {Three-dimensional survey of guattari cave with traditional and mobile phone cameras}, booktitle = {ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences}, year = {2019}, doi = {10.5194/isprs-Archives-XLII-2-W11-37-2019}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85065652753\&doi=10.5194\%2fisprs-Archives-XLII-2-W11-37-2019\&partnerID=40\&md5=f68c468a1ec426380e016417e2f3a0a0}, author = {Alessandri, L. and Baiocchi, V. and Del Pizzo, S. and Di Ciaccio, F. and Onori, M. and Rolfo, M.F. and Troisi, S.} } @conference {151, title = {A comparison between resistant GNSS positioning techniques in harsh environment}, booktitle = {2018 European Navigation Conference, ENC 2018}, year = {2018}, doi = {10.1109/EURONAV.2018.8433232}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052524533\&doi=10.1109\%2fEURONAV.2018.8433232\&partnerID=40\&md5=5929842ba87603741907b4d92d16cd2d}, author = {Angrisano, A. and Gaglione, S. and Maratea, A.} } @conference {146, title = {Non parametric and robust statistics for indoor distance estimation through BLE}, booktitle = {IEEE EE 2018 proceedings}, year = {2018}, keywords = {BLE, indoor positioning, robust statistic}, author = {Gaglione, Salvatore and Maratea, Antonio and Salvi, Giuseppe and Angrisano, Antonio and Nunziata, Alessandro} } @conference {148, title = {Position Accuracy Analysis of a Robust Vision-Based Navigation System}, booktitle = {Proceedings of ISPRS Technical Commission II "Towards Photogrammetry 2020"}, year = {2018}, keywords = {3D map, Navigation, Space Resection}, author = {Gaglione, S. and Del Pizzo, S. and Troisi, S. and Angrisano, A.} } @conference {212, title = {Position accuracy analysis of a robust vision-based navigation system}, booktitle = {International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives}, year = {2018}, doi = {10.5194/isprs-archives-XLII-2-355-2018}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048361729\&doi=10.5194\%2fisprs-archives-XLII-2-355-2018\&partnerID=40\&md5=fe395813d5f316330f8bd6b71295b535}, author = {Gaglione, S. and Del Pizzo, S. and Troisi, S. and Angrisano, A.} } @conference {152, title = {A proposed fault detection and exclusion method applied to multi-GNSS single-frequency PPP}, booktitle = {2018 European Navigation Conference, ENC 2018}, year = {2018}, doi = {10.1109/EURONAV.2018.8433231}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052516238\&doi=10.1109\%2fEURONAV.2018.8433231\&partnerID=40\&md5=7c480a8e72ecb3ea89f5783aa0fd83be}, author = {Innac, A. and Gaglione, S. and Troisi, S. and Angrisano, A.} } @article {145, title = {Reliable vessel attitude estimation by wide angle camera}, journal = {Measurement: Journal of the International Measurement Confederation}, volume = {127}, year = {2018}, pages = {314-324}, doi = {10.1016/j.measurement.2018.05.104}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048158987\&doi=10.1016\%2fj.measurement.2018.05.104\&partnerID=40\&md5=37a32db506f1bd53d241509ca2094f96}, author = {Del Pizzo, S. and Gaglione, S. and Angrisano, A. and Salvi, G. and Troisi, S.} } @article {211, title = {Reliable vessel attitude estimation by wide angle camera}, journal = {Measurement: Journal of the International Measurement Confederation}, volume = {127}, year = {2018}, pages = {314-324}, doi = {10.1016/j.measurement.2018.05.104}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048158987\&doi=10.1016\%2fj.measurement.2018.05.104\&partnerID=40\&md5=37a32db506f1bd53d241509ca2094f96}, author = {Del Pizzo, S. and Gaglione, S. and Angrisano, A. and Salvi, G. and Troisi, S.} } @article {140, title = {A resampling strategy based on bootstrap to reduce the effect of large blunders in GPS absolute positioning}, journal = {Journal of Geodesy}, year = {2018}, pages = {1-12}, abstract = {

In the absence of obstacles, a GPS device is generally able to provide continuous and accurate estimates of position, while in urban scenarios buildings can generate multipath and echo-only phenomena that severely affect the continuity and the accuracy of the provided estimates. Receiver autonomous integrity monitoring (RAIM) techniques are able to reduce the negative consequences of large blunders in urban scenarios, but require both a good redundancy and a low contamination to be effective. In this paper a resampling strategy based on bootstrap is proposed as an alternative to RAIM, in order to estimate accurately position in case of low redundancy and multiple blunders: starting with the pseudorange measurement model, at each epoch the available measurements are bootstrapped{\textemdash}that is random sampled with replacement{\textemdash}and the generated a posteriori empirical distribution is exploited to derive the final position. Compared to standard bootstrap, in this paper the sampling probabilities are not uniform, but vary according to an indicator of the measurement quality. The proposed method has been compared with two different RAIM techniques on a data set collected in critical conditions, resulting in a clear improvement on all considered figures of merit.

}, doi = {10.1007/s00190-017-1046-6}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85022001142\&doi=10.1007\%2fs00190-017-1046-6\&partnerID=40\&md5=9893353c2c5296cc57f808acf611717a}, author = {Angrisano, A. and Maratea, A. and Gaglione, S.} } @article {210, title = {Sensing the submerged landscape of Nisida Roman harbour in the gulf of Naples from integrated measurements on a USV}, journal = {Water (Switzerland)}, volume = {10}, year = {2018}, doi = {10.3390/w10111686}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85056797180\&doi=10.3390\%2fw10111686\&partnerID=40\&md5=3563d79a9000695bb8aba702e66fe081}, author = {Mattei, G. and Troisi, S. and Aucelli, P.P.C. and Pappone, G. and Peluso, F. and Stefanile, M.} } @article {149, title = {Using local redundancy to improve GNSS absolute positioning in harsh scenario}, journal = {ACTA IMEKO}, volume = {7}, year = {2018}, doi = {10.21014/acta_imeko.v7i2.538}, author = {Angrisano, Antonio and Del Pizzo, Silvio and Gaglione, Salvatore and Troisi, Salvatore and Vultaggio, Mario} } @article {147, title = {A Vision-based navigation system for landing procedure}, journal = {ACTA IMEKO}, year = {2018}, author = {Del Pizzo, Silvio and Papa, Umberto and Gaglione, Salvatore and Troisi, Salvatore and Del Core, Giuseppe} } @conference {143, title = {Enhanced pseudorange weighting scheme using local redundancy}, booktitle = {IMEKO TC19 workshop on Metrology for the Sea}, year = {2017}, author = {Angrisano, Antonio and Del Pizzo, Silvio and Gaglione, Salvatore and Troisi, Salvatore and Vultaggio, Mario} } @mastersthesis {138, title = {Fuzzy techniques applied to GNSS for quality assessment and reliability testing in difficult signal scenarios}, year = {2017}, author = {Anna Innac} } @mastersthesis {142, title = {PERSEO (Piattaforma Embedded per la Ricerca del Sentiero di atterraggio ed Ostacoli) - Embedded Platform for UAS Landing Path and Obstacles Detection.}, year = {2017}, author = {Papa, Umberto} } @booklet {137, title = {Robust Estimation Methods Applied to GPS in Harsh Environments}, year = {2017}, abstract = {

Satellite navigation is very widespread in civil society; many devices and services exploit this technology and several systems are in use or in development phase. GNSS receiver, embedded in devices used in daily life (smartphones, cars and so on), works in several conditions and operational scenarios. Ensuring good positioning accuracy is challenging, especially in environment where receiver measurements are affected by gross errors, such as urban canyons. In this paper, the benefit of robust estimators in case of multiple simultaneous blunders is investigated; several robust estimators were implemented and their performances are compared with classical techniques used in GNSS context (WLS, RAIM) using real data. Effectiveness of these methods raised from tests conducted in static and kinematic mode.\ 

}, keywords = {Blunders, GNSS, GPS, Outliers, RAIM, Robust Estimation}, author = {Salvatore Gaglione and Anna Innac and Sonia Carbone Pastore and Salvatore Troisi and Antonio Angrisano} } @conference {144, title = {Vessel attitude estimation by camera sensors}, booktitle = {IMEKO TC19 workshop on Metrology for the Sea}, year = {2017}, author = {Del Pizzo, Silvio and Gaglione, Salvatore and Angrisano, Antonio and Salvi, Giuseppe and Troisi, Salvatore} } @article {136, title = {The overall motion induced interruptions as operability criterion for fishing vessels}, volume = {21}, year = {2016}, month = {2016//}, pages = {517 - 532}, abstract = {

A new index, namely the overall motion induced interruptions (OMII), is proposed as a seakeeping criterion for fishing vessels, to compare ships having different hull forms and dimensions by means of an only parameter, in a human centred approach, mainly related to the onboard risk level. Therefore, the first aim of the paper is to investigate the factors affecting fishing vessels{\textquoteright} seakeeping performances to improve them to reduce the high number of injuries occurring during fishing operations, mainly related to both risk perception and harsh weather conditions. Despite the classical approach, where motion induced interruption is determined for a certain sea state with regard to several location points, the new index accounts for all crew members{\textquoteright} positions on the working deck, all heading angles the vessel may experience during fishing operations, based on relevant operating scenario, and all sea states the ship may encounter in the fishing area. The influence of position, heading angles and sea states on the attained risk level is fully investigated, analysing seakeeping performances of four fishing vessels with different hull forms and dimensions. Finally, a new operability criterion is proposed, based on OMII, to investigate the influence of ship size and operating scenario on the risk of injuries during fishing operations. Main factors affecting fishing vessels{\textquoteright} seakeeping performances are fully discussed, paying attention to relevant correlation with ship roll natural period.

}, isbn = {1437-8213}, url = {http://dx.doi.org/10.1007/s00773-016-0373-2}, author = {Gaglione, S. and Piscopo, V. and Scamardella, A.} } @conference {135, title = {Reliability testing for multiple GNSS measurement outlier detection}, booktitle = {2016 European Navigation Conference (ENC)}, year = {2016}, month = {May}, abstract = {

Due to a rapid development of several Global Navigation Satellite Systems (GNSS), multiple constellations are available to enhance navigation performance and safety. With the growing number of satellite constellations, the task of the GNSS navigation is to deal with the differences among systems but, on the other hand, more great levels of integrity and satellite visibility can be expected. GNSS navigation applications have difficulties in signal degraded scenarios where the GNSS solution can be degraded by errors such as multipath and signals being obscured. RAIM (Receiver Autonomous Integrity Monitoring) is a method necessary for assessing integrity performance levels mainly in safety-critical applications. Classical RAIM techniques are based on the assumption model of a single outlier in the measurements, but with a future of higher satellite availability and for navigation conducted in urban canyon scenarios, the single outlier assumption is unrealistic. Therefore, reliability monitoring techniques need to be modified to be suitable for use cases with high signal degradation levels. The FDE (Fault Detection and Exclusion) schemes analysed in this research for reliability monitoring are the {\textquotedblleft}Observation Subset Testing{\textquotedblright} and a modified approach based on a w-test (called in this paper Multiple Faults De-weighting-MFD). In order to improve their performance a novel Channel Quality Index (CQI) parameter was used to describe the measurement confidence and quality. To validate the proposed approaches, tests have been performed using simulated data with GPS, Galileo and BeiDou signals in a multipath environment.

}, keywords = {BeiDou, channel quality index, Delays, fault detection and exclusion schemes, FDE, Galileo, global navigation satellite systems, Global Positioning System, GNSS, GPS, Indexes, Monitoring, Multi-Constellation, multiple faults de-weighting-MFD, multiple outliers, observation subset testing, RAIM, receiver autonomous integrity monitoring, Receivers, Reliability, reliability testing, satellite navigation, Satellite navigation systems, Satellites, telecommunication network reliability, urban canyon}, doi = {10.1109/EURONAV.2016.7530540}, author = {A. Innac and M. Z. H. Bhuiyan and S. S{\"o}derholm and H. Kuusniemi and S. Gaglione} } @conference {128, title = {3D Models Comparison of complex shell in Undewater and dry Environments}, booktitle = {Underwater 3D Recording and Modeling}, year = {2015}, month = {16{\textendash}17 April}, publisher = {F. Menna, E. Nocerino, S. Del Pizzo, F. Bruno, and}, organization = {F. Menna, E. Nocerino, S. Del Pizzo, F. Bruno, and}, abstract = {

In marine biology the shape, morphology, texture and dimensions of the shells and organisms like sponges and gorgonians are very important parameters. For example, a particular type of gorgonian grows every year only few millimeters; this estimation was conducted without any measurement instrument but it has been provided after successive observational studies, because this organism is very fragile: the contact could compromise its structure and outliving. Non-contact measurement system has to be used to preserve such organisms: the photogrammetry is a method capable to assure high accuracy without contact. Nevertheless, the achievement of a 3D photogrammetric model of complex object (as gorgonians or particular shells) is a challenge in normal environments, either with metric camera or with consumer camera. Indeed, the successful of automatic target-less image orientation and the image matching algorithms is strictly correlated to the object texture properties and of camera calibration quality as well. In the underwater scenario, the environment conditions strongly influence the results quality; in particular, water{\textquoteright}s turbidity, the presence of suspension, flare and other optical aberrations decrease the image quality reducing the accuracy and increasing the noise on the 3D model. Furthermore, seawater density variability influences its refraction index and consequently the interior orientation camera parameters. For this reason, the camera calibration has to be performed in the same survey conditions. In this paper, a comparison between the 3D models of a Charonia Tritonis shell are carried out through surveys conducted both in dry and underwater environments.

}, doi = {10.5194/isprsarchives-XL-5-W5-215-2015}, url = {http://dx.medra.org/10.5194/isprsarchives-XL-5-W5-215-2015}, author = {Troisi, Salvatore and Del Pizzo, Silvio and Gaglione, Salvatore and Miccio, A and Testa, R L} } @conference {129, title = {Benefit of GNSS multiconstellation in position and velocity domain}, booktitle = {Metrology for Aerospace (MetroAeroSpace), 2015 IEEE}, year = {2015}, month = {June}, keywords = {Accuracy, architecture complexity, augmentation systems, aviation application, carrier smoothing code, Carrier Smoothing Code component, classical single point positioning technique, communication infrastructure, Filtering algorithms, Galileo, global navigation satellite systems, Global Positioning System, GLONASS, GNSS multiconstellation, GPS, Multi-Constellation, navigation infrastructure, oceanic areas, position domain, position velocity time algorithm, PVT, restrictive flight phase, satellite navigation, Satellites, Smoothing methods, Standards, surveillance infrastructure, velocity domain, video surveillance}, doi = {10.1109/MetroAeroSpace.2015.7180618}, author = {Gaglione, S. and Angrisano, A. and Freda, P. and Innac, A. and Vultaggio, M. and Crocetto, N.} } @conference {134, title = {The first Galileo FOC satellites: From useless to essential}, booktitle = {Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International}, year = {2015}, month = {July}, keywords = {Galileo, Geometry, Global Positioning System, Orbits, Satellite broadcasting, Satellites, SGP4, Single point positioning, Space vehicles, TLE, Visibility}, doi = {10.1109/IGARSS.2015.7326618}, author = {Gaglione, Salvatore and Angrisano, Antonio and Castaldo, Gaetano and Freda, Pierluigi and Gioia, Ciro and Innac, Anna and Troisi, Salvatore and Del Core, Giuseppe} } @article {113, title = {A Galileo IOV Assessment: Measurement and Position Domain}, journal = {GPS Solution}, volume = {19}, year = {2015}, pages = {199}, chapter = {187}, abstract = {

The European GNSS, Galileo, is currently in its in-orbit validation (IOV) phase where four satellites are finally available for computing the user position. In this phase, the analysis of the measurements and position velocity and time (PVT) obtained from the IOV satellites can provide insight into the potentialities of the Galileo system. A methodology is suggested for the analysis of the Galileo IOV pseudorange and pseudorange rates collected from the E1 and E5 frequencies. Several days of data were collected and processed to determine figures of merit such as root mean square and maximum errors of the Galileo observables. From the analysis, it emerges that Galileo is able to achieve better accuracy than GPS. A thorough analysis of the PVT performance is also carried out using broadcast ephemerides. Galileo and GPS PVTs are compared under similar geometry conditions showing the potential of the Galileo system.

}, doi = {10.1007/s10291-014-0379-3}, author = {Gioia, Ciro and Borio, Daniele and Angrisano, Antonio and Gaglione, Salvatore and Fortuny-Guasch, Joaquim} } @conference {131, title = {GPS/Barometer augmented navigation system: Integration and integrity monitoring}, booktitle = {Metrology for Aerospace (MetroAeroSpace), 2015 IEEE}, year = {2015}, month = {June}, keywords = {ABAS, Accuracy, air navigation system, aircraft based augmentation systems, aircraft navigation, airplane sensor integration, Atmospheric measurements, Barometer, barometer sensor, barometers, civil aviation community, Data Fusion, GBAS, global navigation satellite systems, Global Positioning System, GNSS-based navigation, GPS, GPS-barometer augmented navigation system, ground based augmentation systems, ICAO, integrity monitoring, International Civil Air Navigation Organization, Kalman filter, Mathematical model, position accuracy, Radio Technical Commission for Aeronautics, RAIM, Reliability, required navigation parameters, RNP, RTCA, SBAS, Sea measurements, sensors, space based augmentation systems, system integrity}, doi = {10.1109/MetroAeroSpace.2015.7180647}, author = {Gaglione, S. and Angrisano, A. and Castaldo, G. and Gioia, C. and Innac, A. and Perrotta, L. and Del Core, G. and Troisi, S.} } @conference {130, title = {Inter-system Bias: Stability and impact on multi-constellation positioning}, booktitle = {Metrology for Aerospace (MetroAeroSpace), 2015 IEEE}, year = {2015}, month = {June}, keywords = {Accuracy, estimation process, estimation theory, Extraterrestrial measurements, Galileo-to-GPS time offset, GGTO, global navigation satellite systems, Global Positioning System, GNSS, independent time scales, intersystem bias determination, intersystem time offset determination, multiconstellation positioning performance improvement, multiconstellation receivers, pseudo-measurement, radio receivers, Receivers, Satellites}, doi = {10.1109/MetroAeroSpace.2015.7180635}, author = {Gioia, C. and Gaglione, S. and Borio, D.} } @conference {133, title = {NeQuick Galileo version model: Assessment of a proposed version in operational scenario}, booktitle = {Geoscience and Remote Sensing Symposium (IGARSS), 2015 IEEE International}, year = {2015}, month = {July}, keywords = {Analytical models, Computational modeling, Delays, Galileo, Global Positioning System, ionosphere, Ionospheric correction, Klobuchar, Mathematical model, NeQuick VP, NeQuick-G, Receivers}, doi = {10.1109/IGARSS.2015.7326603}, author = {Gaglione, Salvatore and Angrisano, Antonio and Gioia, Ciro and Innac, Anna and Troisi, Salvatore} } @article {125, title = {Time-differenced carrier phases technique for precise GNSS velocity estimation}, journal = {GPS Solutions}, volume = {19}, year = {2015}, pages = {341}, chapter = {335}, abstract = {

Classically, a stand-alone GNSS receiver estimates its velocity by forming the approximate derivative of consecutive user positions or more often by using the Doppler observable. The first method is very inaccurate, while the second one allows estimation of the order of some cm/s. The time-differenced carrier phase (TDCP) technique, which consists in differencing successive carrier phases, enables accuracies at the mm/s level. A study on the existing TDCP velocity estimation algorithms has revealed that the use of different broadcast ephemeris sets to calculate the satellite positions and clock offsets produces a discontinuity in the TDCP measurements that affects the velocity estimation. We propose a method to overcome this limitation based on the use of the same set of ephemeris to calculate the satellite positions and clock offsets at consecutive epochs. We describe in detail the TDCP algorithm used, and the complete implementation in MATLAB is included.

}, keywords = {Ephemeris selection, GPS, TDCP, Velocity estimation}, issn = {1080-5370}, doi = {10.1007/s10291-014-0425-1}, url = {http://dx.doi.org/10.1007/s10291-014-0425-1}, author = {Freda, Pierluigi and Angrisano, Antonio and Gaglione, Salvatore and Troisi, Salvatore} } @mastersthesis {114, title = {Algoritmi GNSS per la Stima della Velocit{\`a}}, volume = {MSc}, year = {2014}, author = {Freda, Pierluigi} } @mastersthesis {111, title = {GNSS Navigation in difficult environments: Hybridization and Reliability}, volume = {PhD}, year = {2014}, author = {Ciro Gioia} } @article {126, title = {GNSS Navigation In Difficult Environments: Hybridization And Reliability}, journal = {Ricerche di Geomatica 2014}, year = {2014}, abstract = {Satellite navigation is critical in signal-degraded environments where GNSS signals are strongly corrupted. In these cases the use of a single GNSS does not guarantee an accurate and continuous positioning. A possible approach to solve this problem is the use of multi-constellation that provides additional measurements improving the redundancy of the system. Measurements in urban scenario are strongly affected by gross errors, degrading navigation solution; hence a quality check on redundant measurements, defined as RAIM is necessary. The classical RAIM algorithms, developed for aviation, need to be redesigned for urban applications, considering frequent multiple blunders. The FDE schemes analyzed in this research are the Subset, the Forward-Backward and the Danish; they are obtained by combining different basic statistical tests. Specifically a so-called Global Test is adopted to verify the measurement self-consistency. A Local Test is used to identify and reject a blunder into a data set declared not-consistent. The considered FDE methods are modified to optimize their behavior in urban scenario. Specifically a preliminary check based on the WARP parameter, generalization of the classical ARP, is implemented to screen out bad geometries. Moreover a large blunder could cause multiple test failures, inducing incorrect measurements exclusions; hence a separability index is implemented to avoid the incorrect exclusion of blunder-free measurements. Development and testing RAIM algorithms for multi-constellation in multiple blunder case is a main target of this work. For indoor navigation pseudolites are adopted and different positioning algorithms are developed. Indoor positioning has been demonstrated with meter level of accuracy.}, isbn = {978-88-905917-5-4}, author = {GIOIA, C} } @conference {124, title = {NeQuick model performance analysis for GNSS mass market receivers positioning}, booktitle = {United Nations / ICTP Workshop on the Use of Global Navigation Satellite Systems (GNSS) for Scientific Applications}, year = {2014}, address = {International Centre of Theoretical Physics - Trisete (Italy)}, author = {Salvatore Gaglione} } @article {119, title = {P-RANSAC: An Integrity Monitoring Approach for GNSS Signal Degraded Scenario}, journal = {International Journal of Navigation and Observation}, volume = {2014}, year = {2014}, author = {Castaldo, Gaetano and Angrisano, Antonio and Gaglione, Salvatore and Troisi, Salvatore} } @article {115, title = {Real-Time Receiver Clock Jump Detection for Code Absolute Positioning with Kalman Filter}, journal = {Wireless Personal Communications}, year = {2014}, pages = {1-11}, keywords = {Absolute positioning with pseudorange, Clock jump, GNSS, Kalman filter}, issn = {0929-6212}, doi = {10.1007/s11277-014-1849-1}, url = {http://dx.doi.org/10.1007/s11277-014-1849-1}, author = {Angrisano, Antonio and Gaglione, Salvatore and Troisi, Salvatore} } @conference {120, title = {Roll and Pitch Estimation Using Visual Horizon Recognition}, booktitle = {1st International Conference on Augmented and Virtual Reality - Salento AVR 2014}, year = {2014}, address = {Lecce, Italy}, abstract = {

In guidance and automated control system, especially for unmanned vehicle, attitude determination is an important element. Generally this parameter is provided by sensors like INS (Inertial Navigation Systems), but it can be also estimated with a single camera that {\textquotedblleft}looks{\textquotedblright} the horizon. This work presents the project of an embedded solution that uses visual information, captured by a consumer camera, to estimate the vehicle attitude. The system is designed to be mounted on board of a ship or a sail boat, in order to record the roll and pitch angles for safety purpose or to be used for real time application (e.g. during a regatta to overlap the values of the boat attitude with video output coming from a camera mounted on the masthead framing the race field).

}, author = {Del Pizzo, Silvio and Troisi, Salvatore and Angrisano, Antonio and Gaglione, Salvatore} } @mastersthesis {109, title = {Tecnica RANSAC/RANCO per il posizionamento in ambiente urbano}, year = {2014}, school = {Parthenope}, author = {Gaetano Castaldo} } @conference {122, title = {Validity period of NeQuick (Galileo version) corrections: Trade-off between accuracy and computational load}, booktitle = {Localization and GNSS (ICL-GNSS), 2014 International Conference on}, year = {2014}, month = {June}, keywords = {Accuracy, Antennas, atmospheric layers, broadcast communication, broadcast navigation data, computational load, Computational modeling, Galileo, Galileo navigation message, Galileo version, Global Positioning System, GNSS broadcast signals, GNSS-based navigation, GPS measurements, ionosphere, ionosphere effect, Ionospheric Model, Klobuchar model, linear combination, Mathematical model, MATLAB, NeQuick, NeQuick corrections, PVT accuracy, Single point positioning, validity period}, doi = {10.1109/ICL-GNSS.2014.6934183}, author = {Angrisano, A. and Gaglione, S. and Gioia, C. and Troisi, S.} } @mastersthesis {107, title = {Analisi dell{\textquoteright}Accuratezza di Orbite Broadcast e Precise delle Costellazioni GPS e GLONASS}, year = {2013}, school = {Parthenope}, author = {Aniello De Luca} } @article {98, title = {Assessment of NeQuick ionospheric model for Galileo single-frequency users}, journal = {Acta Geophysica}, volume = {61}, year = {2013}, month = {12/2013}, pages = {1457-1476 }, type = {Research Article}, abstract = {

In signal-degraded environments such as urban canyons and mountainous area, many GNSS\ signals are either blocked or strongly degraded by natural and artificial obstacles. In such

scenarios standalone GPS is often unable to guarantee a continuous and accurate positioning\ due to lack (or the poor quality) of signals. The combination of different GNSSs could be a

suitable approach to fill this gap, because the multi-constellation system guarantees an improved\ satellite availability compared to standalone GPS, thus providing enhanced accuracy, continuity\ and integrity of the positioning. The present GNSSs are GPS, GLONASS, Galileo and Beidou,\ but the latter two are still in the development phase. In this work GPS/GLONASS systems are\ combined for single point positioning and their performance are assessed for different\ configurations. Using GPS/GLONASS multi-constellation implies the addition of an additional\ unknown, i.e. the intersystem time scale offset, which requires a sacrifice of one measurement.

Since the intersystem offset is quasi-constant over a short period, a pseudo-measurement can be\ introduced to compensate the sacrifice.

The benefit after adding a pseudo-measurement has been demonstrated in a vehicular test.

}, keywords = {Galileo, GNSS, ionospheric models, Klobuchar, NeQuick}, issn = {1895-6572}, doi = {10.2478/s11600-013-0116-2}, url = {http://dx.doi.org/10.2478/s11600-013-0116-2}, author = {Angrisano, Antonio and Gaglione, Salvatore and Gioia, Ciro and Massaro, Marco and Robustelli, Umberto} } @article {112, title = {Benefit of the NeQuick Galileo Version in GNSS Single-Point Positioning}, journal = {International Journal of Navigation and Observation}, year = {2013}, issn = {1687-5990}, doi = {10.1155/2013/302947}, url = {http://dx.doi.org/10.1155/2013/302947}, author = {Angrisano, Antonio and Gaglione, Salvatore and Gioia, Ciro and Massaro, Marco and Troisi, Salvatore} } @article {103, title = {Digital Surface Models for GNSS Mission Planning in Critical Environments}, journal = {Journal of Surveying Engineering}, year = {2013}, pages = {null}, issn = {0733-9453}, doi = {10.1061/(ASCE)SU.1943-5428.0000119}, url = {http://ascelibrary.org/doi/abs/10.1061/\%28ASCE\%29SU.1943-5428.0000119}, author = {Ackermann, S. and Angrisano, A. and Del Pizzo, S. and Gaglione, S. and Gioia, C. and Troisi, S.} } @article {99, title = {GNSS Reliability Testing in Signal-Degraded Scenario}, journal = {International Journal of Navigation and Observation}, year = {2013}, pages = {{\textendash}}, abstract = {

Multiconstellation satellite navigation is critical in signal-degraded environments where signals are strongly corrupted. In this case, the use of a single GNSS system does not guarantee an accurate and continuous positioning. A possible approach to solve this problem is the use of multiconstellation receivers that provide additional measurements and allows robust reliability testing; in this work, a GPS/GLONASS combination is considered. In urban scenario, a modification of the classical RAIM technique is necessary taking into account frequent multiple blunders. The FDE schemes analysed are the {\textquotedblleft}Observation Subset Testing,{\textquotedblright} {\textquotedblleft}Forward-Backward Method,{\textquotedblright} and {\textquotedblleft}Danish Method{\textquotedblright}; they are obtained by combining different basic statistical tests. The considered FDE methods are modified to optimize their behaviour in urban scenario. Specifically a preliminary check is implemented to screen out bad geometries. Moreover, a large blunder could cause multiple test failures; hence, a separability index is implemented to avoid the incorrect exclusion of blunder-free measurements. Testing the RAIM algorithms of GPS/GLONASS combination to verify the benefits relative to GPS only case is a main target of this work too. The performance of these methods is compared in terms of RMS and maximum error for the horizontal and vertical components of position and velocity.

}, issn = {1687-5990}, doi = {10.1155/2013/870365}, url = {http://dx.doi.org/10.1155/2013/870365}, author = {Angrisano, Antonio and Gioia, Ciro and Gaglione, Salvatore and Del Core, Giuseppe} } @article {101, title = {Performance assessment of aided Global Navigation Satellite System for land navigation}, journal = {IET Radar, Sonar \& Navigation}, volume = {7}, year = {2013}, pages = {671{\textendash}680}, doi = {10.1049/iet-rsn.2012.0224}, url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6573687}, author = {Angrisano, Antonio and Gaglione, Salvatore and Gioia, Ciro} } @article {84, title = {Performance assessment of GPS/GLONASS single point positioning in an urban environment}, journal = {Acta Geodaetica et Geophysica}, year = {2013}, pages = {1-13}, abstract = {

In signal-degraded environments such as urban canyons and mountainous area, many GNSS signals are either blocked or strongly degraded by natural and artificial obstacles. In such scenarios standalone GPS is often unable to guarantee a continuous and accurate positioning due to lack (or the poor quality) of signals. The combination of different GNSSs could be a suitable approach to fill this gap, because the multi-constellation system guarantees an improved satellite availability compared to standalone GPS, thus providing enhanced accuracy, continuity and integrity of the positioning. The present GNSSs are GPS, GLONASS, Galileo and Beidou, but the latter two are still in the development phase. In this work GPS/GLONASS systems are combined for single point positioning and their performance are assessed for different configurations. Using GPS/GLONASS multi-constellation implies the addition of an additional unknown, i.e. the intersystem time scale offset, which requires a sacrifice of one measurement. Since the intersystem offset is quasi-constant over a short period, a pseudo-measurement can be introduced to compensate the sacrifice.

The benefit after adding a pseudo-measurement has been demonstrated in a vehicular test.

}, keywords = {GLONASS, GNSS, GPS, Kalman filter, Pseudorange, RAIM, Single point positioning}, issn = {2213-5812}, doi = {10.1007/s40328-012-0010-4}, url = {http://dx.doi.org/10.1007/s40328-012-0010-4}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C} } @conference {100, title = {Testing the Test Satellites: the Galileo IOV Measurement Accuracy}, booktitle = {ICL-GNSS 2013 : International Conference on Localization and GNSS (accepted)}, year = {2013}, month = {06/2013}, abstract = {
Abstract {\textemdash} The European GNSS, Galileo, is currently in its InOrbit Validation (IOV) phase where four satellites are finally\ available for computing the user position. In this phase, the\ analysis of the measurements obtained from the IOV satellites\ can provide insight on the performance and potentialities of the\ 
Galileo system. In this paper, a methodology based on the use of\ precise orbits and ionospheric corrections is suggested for the\ analysis of the Galileo IOV pseudorange and pseudorange rate\ errors. Several hours of data were collected using a Septentrio \ PolarRxS receiver and used to determine figures of merits such\ as RMS and maximum errors of the Galileo observables. From\ the analysis it emerges that Galileo measurements have\ accuracies comparable with those of GPS. The benefits of\ combined GPS-Galileo positioning are also highlighted and\ results relative to the computation of a Galileo-only navigation\ 
solution based on broadcast ephemerides are provided.\ 
}, author = {A. Angrisano and S. Gaglione and C. Gioia and D. Borio and J. Fortuny-Guasch} } @conference {82, title = {Aided GPS/GLONASS navigation in urban environment}, booktitle = {ENC 2012}, year = {2012}, month = {04/2012}, abstract = {
In signal-degraded environments such as urban canyons or mountainous areas many GPS signals\ 
are blocked by natural or artificial obstacles or severely degraded; hence GPS-only cannot\ 
guarantee an accurate and continuous positioning. The multi constellation approach, integrating\ 
different GNSS systems, is a possible way to fill this gap. GLONASS, the Russian navigation\ 
satellite system, is currently the main candidate as element of a multi constellation; it is nearly fully\ 
operational and its inclusion guarantees an improvement of the satellite availability. Another\ 
possible future component of integrated GNSS system is the European Galileo currently in a\ 
validation phase with only 4 satellites in orbit GIOVE A/B experimental satellites and 2 Galileo for\ 
the IOV phase.
In this work GPS/GLONASS systems are combined and relative single point algorithm\ 
performance is assessed for different configurations in signal-degraded scenario such as urban\ 
canyon. GPS/GLONASS multi-constellation use involves the addition of a further unknown to\ 
estimate, i.e. the intersystem time scale offset, which requires the {\textquotedblleft}sacrifice{\textquotedblright} of one measurement.\ 
The intersystem offset is observed to be quasi-constant, so an aiding can be introduced to account\ 
for its behavior. A similar approach can be adopted for altitude considering its typical variations in\ 
urban scenario.
The considered estimation techniques are least squares and Kalman filter, commonly adopted to\ 
calculate the navigation unknowns from pseudorange measurements. The least squares method uses
a model relating measurements and state with the drawback of solution unavailability during GNSS\ 
outages (very frequent in urban areas); to improve the continuity constrained least squares
adjustments are considered. Kalman filter uses, in addition to a measurement model, a process\ 
model expressing the unknown dynamics and allowing the state estimation in case of GNSS outage.
The main purpose of this work is the performance assessment of a multi-constellation system\ 
relative to GPS-only adopting least squares or Kalman filter estimators.
}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and VULTAGGIO, M} } @article {65, title = {Benefits of Combined GPS/GLONASS with Low-Cost MEMS IMUs for Vehicular Urban Navigation}, journal = {Sensors}, volume = {12}, year = {2012}, month = {04/2012}, pages = {25}, chapter = {5134}, abstract = {
The integration of Global Navigation Satellite Systems (GNSS) with Inertial\ 
Navigation Systems (INS) has been very actively researched for many years due to the\ 
complementary nature of the two systems. In particular, during the last few years the\ 
integration with micro-electromechanical system (MEMS) inertial measurement units\ 
(IMUs) has been investigated. In fact, recent advances in MEMS technology have made\ 
possible the development of a new generation of low cost inertial sensors characterized by\ 
small size and light weight, which represents an attractive option for mass-market\ 
applications such as vehicular and pedestrian navigation. However, whereas there has been\ 
much interest in the integration of GPS with a MEMS-based INS, few research studies\ 
have been conducted on expanding this application to the revitalized GLONASS system.\ 
This paper looks at the benefits of adding GLONASS to existing GPS/INS(MEMS)\ 
systems using loose and tight integration strategies. The relative benefits of various\ 
constraints are also assessed. Results show that when satellite visibility is poor\ 
(approximately 50\% solution availability) the benefits of GLONASS are only seen with\ 
tight integration algorithms. For more benign environments, a loosely coupled\ 
GPS/GLONASS/INS system offers performance comparable to that of a tightly coupled\ 
GPS/INS system, but with reduced complexity and development time.
}, issn = {1424-8220}, doi = {10.3390/s120405134}, url = {http://www.mdpi.com/1424-8220/12/4/5134}, author = {ANGRISANO, A and PETOVELLO, M and PUGLIANO, G} } @mastersthesis {106, title = {Confronto tra Tecniche RAIM e NIORAIM in Ambiente Urbano}, year = {2012}, school = {Parthenope}, author = {Giuseppe Rotondo} } @article {34, title = {GIOVE Satellites Pseudorange Error Assessment}, journal = {JOURNAL OF NAVIGATION}, volume = {65}, year = {2012}, pages = {29{\textendash}40}, abstract = {

Galileo is a global civil navigation satellite system developed in Europe as an alternative to the GPS controlled by the US Department of Defense and GLONASS controlled by Russian Space Forces. It is scheduled to be operative in 2013 and it will have 30 satellites orbiting on three inclined planes with respect to the equatorial plane at an altitude of about 24 000 km. The aim of this work is the study of the pseudorange error of the GIOVE satellites. To achieve this goal, the specifications defined in Giove A-B Navigation Signal in Space Interface Control Document (ICD) are used to develop a suitable software tool in MATLAB{\textregistered} environment. The tool is able to compute GIOVE A and GIOVE B position from the broadcast ephemerides, to calculate the pseudorange error and to process it. From the known receiver position and the computed satellite coordinates, the geometric range is obtained and compared with the pseudorange measurement, in order to obtain the pseudorange error.

}, issn = {0373-4633}, doi = {10.1017/S0373463311000270}, url = {http://dx.medra.org/10.1017/S0373463311000270}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and ROBUSTELLI, U and VULTAGGIO, M} } @conference {85, title = {RAIM algorithms for aided GNSS in urban scenario}, booktitle = {Ubiquitous Positioning, Indoor Navigation, and Location Based Service (UPINLBS), 2012}, year = {2012}, abstract = {

Urban canyon is a critical scenario for satellite navigation, because many GNSS signals are blocked by artificial obstacles or severely degraded; in standalone mode GPS, currently the main GNSS, cannot guarantee an accurate and continuous positioning. A possible approach to overcome these limitations is the use of multiple GNSS systems. GLONASS, the Russian navigation satellite system, is currently fully operational and is the main candidate to support this thesis. Urban scenario is mainly affected by multipath phenomenon, yielding several blunders into the measurements and unacceptable errors in the navigation solution. The integrity concept was introduced for safety-of-life application as aviation to provide timely warnings to users when a system should not be used for navigation, and then it was expanded to not safety-of-life service as urban navigation. RAIM (Receiver Autonomous Integrity Monitoring) techniques are user-level integrity methods based on consistency check of redundant measurements. This check is crucial because only at user-level certain local errors, such as multipath and local interferences, can be detected. Multi-constellation GNSS improves navigation solution in terms of accuracy and continuity; a further enhancement is achievable even in terms of integrity owing to the gained redundancy.

The multi-constellation use implies a further unknown related to the intersystem time scale offset, requiring the \{\textquotedblleft}sacrifice\{\textquotedblright} of one measurement. This parameter is observed to be quasi-constant in the short term, so an aiding can be introduced to account for its behavior. A similar approach can be adopted for altitude considering its slow variations in urban scenario. In this work GPS/GLONASS systems are combined and the benefits of the aforesaid aids are assessed, with main focus being the improvements in terms of integrity; single point GNSS and snapshot RAIM algorithms are herein considered. PVT and RAIM algorithms are developed in MatLab\- $\#$x00AE; environment and belong to a tool implemented by PANG (PArthenope Navigation Group).

}, isbn = {978-1-4673-1908-9}, doi = {http://dx.doi.org/10.1109/UPINLBS.2012.6409786}, url = {http://ieeexplore.ieee.org/Xplore/defdeny.jsp?url=http\%3A\%2F\%2Fieeexplore.ieee.org\%2Fstamp\%2Fstamp.jsp\%3Ftp\%3D\%26arnumber\%3D6409786\&denyReason=-133\&arnumber=6409786\&productsMatched=null\&userType=inst}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C} } @mastersthesis {71, title = {Tecniche RAIM per il Posizionamento Satellitare in Single Point}, volume = {MSc}, year = {2012}, school = {Parthenope}, address = {Naples}, abstract = {
Oggigiorno, i sistemi di navigazione satellitare (GNSS) ricoprono un ruolo fondamentale in\ 
molti settori come l{\textquoteright}aviazione civile e la navigazione, marittima o terrestre, grazie alla\ 
capacit{\`a} di fornire con accuratezza e continuit{\`a} informazioni di posizione tridimensionale e\ 
velocit{\`a} agli utenti opportunamente equipaggiati, nonch{\'e} la sincronizzazione con il tempo\ 
UTC (Universal Time Coordinate).
Attualmente, solo due sistemi GNSS sono pienamente operativi: il GPS (Global Positioning
System) e il sistema Russo GLONASS (Global Navigation Satellite System) mentre, altri\ 
sistemi come l{\textquoteright}Europeo GALILEO o il Cinese BeiDou sono attualmente in fase di sviluppo.
Il GPS {\`e} attualmente considerato il principale sistema GNSS ed {\`e} in grado di garantire la\ 
stima della posizione di un utente attraverso l{\textquoteright}utilizzo dell{\textquoteright}osservabile pseudorange in single\ 
point, con un{\textquoteright}accuratezza di circa 10 metri in condizioni di buona visibilit{\`a}.
Il principale svantaggio del GPS, e dei sistemi GNSS in generale, {\`e} la necessit{\`a} di avere una\ 
buona visibilit{\`a} di satelliti; per questa ragione gli ambienti in cui si ha un forte degrado del\ 
segnale, come le aree urbane, risultano essere aree particolarmente critiche per la navigazione\ 
satellitare. Infatti, gli edifici possono bloccare alcuni segnali riducendo cos{\`\i} la disponibilit{\`a} di\ 
satelliti, causando un peggioramento della loro configurazione geometrica, fino a casi estremi\ 
in cui, a causa della mancanza di misure, non sia possibile il calcolo della soluzione di\ 
navigazione. Gli edifici possono anche riflettere i segnali dando luogo al fenomeno del\ 
multipath e introducendo errori grossolani nelle misure.
L{\textquoteright}utilizzo del solo sistema GPS risulta essere, quindi, non adeguato a garantire la continuit{\`a} e\ 
l{\textquoteright}accuratezza della soluzione di navigazione in ambienti urbani.
In queste particolari circostanze un possibile miglioramento pu{\`o} essere ottenuto combinando\ 
il sistema GPS con il sistema Russo GLONASS in modo da aumentare la disponibilit{\`a} di\ 
satelliti visibili ad ogni epoca.
In ambito aeronautico, tutti i sistemi GNSS devono essere in grado di soddisfare particolari\ 
requisiti di sicurezza (RNP {\textendash} Required Navigation Performance) in termini di disponibilit{\`a},
continuit{\`a}, accuratezza e integrit{\`a}.
Quest{\textquoteright}ultimo {\`e} il requisito pi{\`u} difficile da soddisfare e rappresenta la capacit{\`a} del sistema di\ 
navigazione di rilevare e segnalare tempestivamente malfunzionamenti che potrebbero\ 
compromettere le prestazioni richieste per le diverse fasi di volo.
Sebbene i sistemi GNSS forniscano informazioni di integrit{\`a} agli utenti tramite il messaggio\ 
di navigazione (l{\textquoteright}health flag dei satelliti), queste non sono ritenute sufficientemente\ 
tempestive per molte applicazioni; per questa ragione i requisiti di integrit{\`a} sono
generalmente ottenuti implementando vari meccanismi a vari livelli e possono essere
conseguiti o mediante informazioni esterne o possono essere basati interamente sulle sole\ 
misure disponibili al ricevitore.
In particolare:
 A livello esterno, {\`e} possibile ottenere informazioni di integrit{\`a} (livello di integrit{\`a} e\ 
warning) attraverso l{\textquoteright}utilizzo di sistemi di augmentation che prevedono l{\textquoteright}utilizzo di\ 
infrastrutture spaziali (SBAS {\textendash} Satellite Based Augmentation System) e/o terrestri (GBAS
{\textendash} Ground Based Augmentation System).
 A livello locale, un utente pu{\`o} realizzare l{\textquoteright}integrit{\`a} effettuando un check sulla consistenza\ 
delle misure attraverso particolari tecniche (dette RAIM).Le tecniche RAIM (Receiver Autonomous Integrity Monitoring) sono state inizialmente\ 
sviluppate per applicazioni di tipo aeronautico e sono, generalmente, utilizzate in specifiche\ 
fasi di volo.\ 
Esse risultano essere un mezzo supplementare per l{\textquoteright}individuazione di blunder attraverso il\ 
solo utilizzo di ricevitori GNSS senza la necessit{\`a} di apparecchiature aggiuntive al suolo.\ 
Viene, infatti, richiesta esclusivamente una ridondanza sufficiente per l{\textquoteright}applicazione dei test\ 
statistici.
L{\textquoteright}obiettivo principale di questo lavoro {\`e} sviluppare tecniche RAIM per la navigazione\ 
satellitare in single point per applicazioni in ambienti urbani degradati.
Inizialmente viene fornita una breve panoramica sui sistemi GNSS utilizzati in questo lavoro.\ 
In particolare sono messe in evidenza le principali similitudini e differenze tra il sistema GPS\ 
e il sistema GLONASS
Successivamente sono descritte le tecniche di stima utilizzate per il calcolo della soluzione di\ 
navigazione ed {\`e} fornita una breve descrizione dei test statistici alla base degli schemi RAIM\ 
utilizzati.
Sono poi descritti gli algoritmi per il calcolo di posizione e velocit{\`a} con misure di\ 
pseudorange e Doppler sui segnali GPS e GLONASS.
In seguito sono descritti in dettaglio gli algoritmi RAIM implementati:\ l{\textquoteright}Observation Subset\ 
Testing, il metodo Forward-Backward ed il Metodo Danese, ognuno dei quali caratterizzato\ 
dalle proprie peculiarit{\`a}.
Infine sono illustrati i risultati ottenuti attraverso l{\textquoteright}applicazione dei tre schemi RAIM per due\ 
differenti configurazioni: una configurazioni in cui si fa uso di sole misure GPS e una\ 
configurazione in cui sono utilizzate le misure effettuate da entrambi i sistemi GPS e\ 
GLONASS. Lo studio delle prestazioni dell{\textquoteright}algoritmo proposto fa uso di dati di una stazione\ 
fissa collocata in ambiente urbano particolarmente ostile, la cui posizione {\`e} nota con\ 
precisione millimetrica.

}, author = {PERROTTA, L} } @conference {62, title = {Algorithms for GNSS Positioning in Difficult Scenario}, booktitle = {ENC 2011}, year = {2011}, month = {12/2011}, address = {London}, abstract = {
Satellite navigation is critical in signal-degraded environments such as urban\ 
canyons and mountainous area, where many GNSS signals are blocked by natural\ 
and artificial obstacles or are strongly degraded. Hence standalone GPS is often\ 
unable to guarantee a continuous and accurate positioning. A suitable approach\ 
could be the integration of several GNSS. Multi-constellation system guarantees an\ 
improved satellite availability with respect to GPS standalone, providing a\ 
positioning enhancement in terms of accuracy, continuity and integrity. Currently\ 
the ideal candidate for supplement GPS in a multi-constellation approach is the\ 
Russian GLONASS. The main purposes of this work are the performance\ 
assessment of a GNSS multi-constellation relative to GPS stand-alone and the\ 
comparison of Least Squares and Kalman Filter.\ 
}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and ROBUSTELLI, U and VULTAGGIO, M} } @article {36, title = {Analisi del Posizionamento assoluto GPS e GNSS in ambiente urbano}, journal = {BOLLETTINO DELLA SOCIET{\`A} ITALIANA DI FOTOGRAMMETRIA E TOPOGRAFIA}, volume = {3}, year = {2011}, pages = {23{\textendash}42}, issn = {1721-971X}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and ROBUSTELLI, U and SANTAMARIA, R} } @mastersthesis {70, title = {Confronto tra Modelli Ionosferici nel Posizionamento GNSS in Singola Frequenza}, volume = {MSc}, year = {2011}, school = {Parthenope}, address = {Naples}, author = {MASSARO, M} } @mastersthesis {67, title = {GNSS/INS Integration Methods}, volume = {PhD}, year = {2011}, school = {Parthenope}, address = {Naples}, abstract = {
In critical locations such as urban or mountainous areas satellite navigation is difficult,\ 
above all due to the signal blocking problem; for this reason satellite systems are often\ 
integrated with inertial sensors, owing to their complementary features. A common\ 
configuration includes a GPS receiver and a high-precision inertial sensor, able to\ 
provide navigation information during GPS gaps.
Nowadays the low cost inertial sensors with small size and weight and poor accuracy\ 
are developing and their use as part of integrated navigation systems in difficult\ 
environments is under investigation. On the other hand the recent enhancement of\ 
GLONASS satellite system suggests the combined use with GPS in order to increase the\ 
satellite availability as well as position accuracy; this can be especially useful in places\ 
with lack of GPS signals.
This study is to assess the effectiveness of the integration of GPS/GLONASS with low\ 
cost inertial sensors in pedestrian and vehicular urban navigation and to investigate
methods to improve its performance.
The Extended Kalman filter is used to merge the satellite and inertial information and\ 
the loosely and tightly coupled integration strategies are adopted; their performances\ 
comparison in difficult areas is one of the main objectives of this work. Generally the\ 
tight coupling is more used in urban or natural canyons because it can provide an\ 
integrated navigation solution also with less than four satellites (minimum number of\ 
satellites necessary for a GPS only positioning); the inclusion of GLONASS satellites in\ 
this context may change significantly the role of loosely coupling in urban navigation.\ 
In this work pseudorange and Doppler measurements are processed in single point\ 
mode; hence no differential processing is performed and no base station is necessary.
For bounding the MEMS INS errors during GPS/GLONASS outages, the use of motion\ 
constraints is introduced and evaluated. To carry out the analysis a complete navigation\ 
software has been developed in Matlab environment.
The results show that the integration of GPS/INS provides satisfying performance only\ 
in good visibility conditions in both loose and tight architectures, while during GPS\ 
outages (longer than few seconds) very large errors are experienced; including\ 
GLONASS in GPS/INS integration produces significant solution improvements. As\ 
expected the tight integration shows better performance during GNSS outages, but the\ 
results obtained with GPS/INS integration in tight architecture and 3
GPS/GLONASS/INS integration in loose approach are often similar, suggesting the use\ 
of the latter configuration owing to its relatively simple implementation. The motion\ 
constraints provide remarkable enhancements of the navigation solution, with RMS\ 
position error of a few meters in difficult urban canyons for both loose and tight\ 
architectures.
}, author = {ANGRISANO, A} } @conference {64, title = {Ionospheric models comparison for single-frequency GNSS positioning}, booktitle = {ENC 2011}, year = {2011}, month = {12/2011}, abstract = {
Broadcast Ionospheric Correction Algorithms (ICA) are used in Global
Navigation Satellite System (GNSS) single frequency receivers positioning to
compute the satellite signal delay due to the propagation through ionosphere. In
this paper two ionospheric models are considered: Klobuchar model used by the
U.S. Global Positioning System (GPS) and NeQuick model adopted by the\ 
European Galileo system.
The goal of this paper is to investigate the validity and efficiency of the
examined models by analyzing their performances in single frequency GNSS\ 
receiver
}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and MASSARO, M and ROBUSTELLI, U and SANTAMARIA, R} } @mastersthesis {68, title = {Posizionamento Doppler con osservabili GPS: una metodologia alternativa}, volume = {MSc}, year = {2011}, school = {Parthenope}, address = {Naples}, abstract = {
Il sistema GPS fornisce informazioni di posizione, velocit{\`a} e sincronizzazione temporale su\ 
scala globale con continuit{\`a} e accuratezza solo in caso di buone condizioni di intervisibilit{\`a}\ 
ricevitore-satelliti.\ 
In scenari urbani o indoor la navigazione satellitare risulta particolarmente critica per la\ 
carenza o il degrado dei segnali GPS, dovuta alla presenza di ostacoli che bloccano o\ 
disturbano i segnali elettromagnetici. In ambienti particolarmente ostili risulta difficile la\ 
demodulazione del messaggio di navigazione e dei ranging code rendendo il posizionamento\ 
assoluto con misure di pseudorange (single point positioning) poco accurato o discontinuo; in\ 
tali condizioni la misura della frequenza del segnale (e dunque lo shift Doppler) e\ 
l"individuazione del satellite di provenienza potrebbero essere le sole informazioni\ 
disponibili.
I sistemi Assisted-GNSS sono in grado di ottenere le effemeridi dei satelliti della\ 
costellazione attraverso la rete cellulare; con tali informazioni ed elaborando opportunamente\ 
l"osservabile Doppler {\`e} possibile una stima della posizione del mobile.
Lo scopo principale di questo lavoro {\`e} testare algoritmi innovativi per il posizionamento\ 
Doppler in modalit{\`a} single point, sia in modalit{\`a} statica che cinematica. Tali algoritmi\ 
necessitano la conoscenza della velocit{\`a} del ricevitore GPS. Nel caso statico la velocit{\`a} {\`e}\ 
nota, mentre nel caso cinematico {\`e} stimata adottando una tecnica di calcolo basata\ 
sull"utilizzo delle stesse misure Doppler.
}, author = {De Simone, A} } @conference {35, title = {The Satellite Positioning Evolution in Coastal Processes}, booktitle = {Coastal Process II}, year = {2011}, month = {27-29 April}, publisher = {WIT Press}, organization = {WIT Press}, address = {SOUTHAMPTON {\textendash} GBR}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and VULTAGGIO, M} } @article {83, title = {The Satellite Positioning Evolution in Coastal Processes}, journal = {Coastal Process II}, year = {2011}, chapter = {177}, isbn = {978-1-84564-534-2}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C} } @article {gaglione2011-1, title = {A stochastic sigma model for GLONASS satellite pseudorange}, journal = {APPLIED GEOMATICS}, volume = {3}, year = {2011}, pages = {{\textendash}}, issn = {1866-9298}, doi = {10.1007/ s12518-011-0046-0}, url = {http://dx.medra.org/10.1007/ s12518-011-0046-0}, author = {ANGRISANO, A and GAGLIONE, S and PUGLIANO, G and ROBUSTELLI, R and SANTAMARIA, R and VULTAGGIO, M} } @conference {61, title = {GNSS INS Integration in Vehicular Urban Navigation}, booktitle = {GNSS ION 2010}, year = {2010}, month = {09/2010}, address = {PORTLAND, OR}, abstract = {
In critical locations as urban or mountainous areas\ 
satellite navigation is difficult, above all due to the signal\ 
blocking problem; for this reason satellite systems are\ 
often integrated with inertial sensors, owing to their complementary features.
A common configuration includes GPS receiver and an\ 
high-precision inertial sensor, a
Nowadays the low cost inertial sensors with small size\ 
and weight and poor accuracy are developing and their\ 
use as part of integrated navigation
On the other hand the recent enhancement of GLONASS\ 
satellite system suggests the combined use with GPS in\ 
order to increase the satellite availability; this ca
This study purpose is to assess the effectiveness of the\ 
integration of GPS/GLONASS with
The Extended Kalman filter is used to merge the satellite\ 
and inertial information and the loosely and tightly\ 
coupled architectures are the integration strategies\ 
adopted; their performances comparison in difficult areas\ 
is one of the main purpose. Generally the tight coupling is\ 
more used in urban or natural canyons because it can\ 
provide an integrated navigation solution also with less\ 
than four satellites (minimum number of satellites\ 
necessary for a GPS only positioning); the inclusion of\ 
GLONASS satellites in this context may change\ 
significantly\ the role of loosely coupling in urban navigation.
In this work pseudorange and Doppler measurements are\ 
processed in single point mode; hence no differential\ processing is performed and no base station is necessary.

}, author = {ANGRISANO, A and PETOVELLO, M and PUGLIANO, G} } @article {217, title = {On the influence of the warping shear stress on the hull girder strength}, journal = {Journal of Ship Research}, volume = {54}, year = {2010}, pages = {231-243}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-78649581233\&partnerID=40\&md5=cc19afb7a0d21d8d09620953a3f06a10}, author = {Campanile, A. and Mandarino, M. and Piscopo, V.} } @article {gaglione2010, title = {Space-Based Augmentation for Integrity Improvement}, journal = {ANNALI DELLA FACOLT{\`A} DI SCIENZE E TECNOLOGIE}, volume = {70}, year = {2010}, pages = {{\textendash}}, issn = {1825-1331}, author = {ANGRISANO, A and GAGLIONE, S and GIOIA, C and ROBUSTELLI, U} } @conference {de2009, title = {An EGNOS Based Navigation System for Highly Reliable Aircraft Automatic Landing}, booktitle = {ENC GNSS 2009 PROCEEDINGS}, year = {2009}, month = {3-6 MAY}, pages = {{\textendash}}, abstract = {
Highly precise navigation is the core technology\ 
required for many applications, such as automated\ 
aerial refuelling (AAR), sea-based joint precision\ 
approach and landing systems (JPALS), stationkeeping, unmanned aerial vehicles (UAV) swarming\ 
and formation flight and unmanned ground vehicles\ 
(UGV) convoys. Advances in the above mentioned\ 
technology are possible considering the future\ 
GNSS framework, given that adequate\ 
characterization of new GNSS devices are\ 
performed and that new algorithms are developed\ 
that fully exploits the functionalities made available\ 
by the future GNSS systems. In this paper both\ 
aspects are considered, with specific reference to the\ 
use of GPS/EGNOS for reliable fixed wing aircraft\ 
automatic landing applications.\ 
For what concern experimental characterization of\ 
the satellite based navigation system GPS/EGNOS,\ 
the main aim of the activity was to describe the\ 
broadcasted messages to enhance the navigation\ 
accuracy and integrity of the core GNSS-1 elements\ 
GPS and GLONASS, and to exploit how the data\ 
can be used to compute and analyze the\ 
performance in terms of Required Navigation\ 
Performance (RNP) parameters. The paper describes\ 
the algorithm implemented to process the\ 
broadcasted EGNOS SIS in order to obtain a\ 
position solution and integrity information\ 
compliant with RTCA DO229C. Moreover, the\ 
paper presents test procedures and experimental\ 
results that may be used as a design guideline for\ 
monitoring manufacturing compliance and, in\ 
certain cases, for obtaining formal DO229C\ 
certification of equipment design and manufacture.\ 
On the other hand, concerning the development of\ 
new algorithms for Guidance, Navigation \& Control\ 
of fixed wing vehicles, that are already compatible
with the future GNSS framework, it was initially\ 
considered a suite of navigation sensors with\ 
accuracy similar to the one obtainable by EGNOS.\ 
In order to overcome the effects due to an\ 
insufficient accuracy, the satellite measures can be\ 
in fact integrated with different sensor sources\ 
allowing a high precision navigation and an\ 
improvement of the integrity and reliability of\ 
navigation solutions. By means of an appropriate\ 
sensor suite, described in the next, and of a sensor\ 
fusion algorithm we obtained a high precision level
in navigation measurements that, for instance,\ 
allows a high autonomous precision approach and\ 
landing. A very simple but effective sensor fusion\ 
algorithm based on the use of complementary\ 
filtering technique has been implemented.\ 
Moreover, some critical autonomous functionality,\ 
such as Autolanding, will utilize the GPS integrity\ ignal in its decision-making logic for evaluating the\ 
key-decisions regarding the possible execution of an\ 
altitude recovery manoeuvre and, in case, also\ 
considering a degraded mode by changing the\ 
desired performances at touch down, with the aim to
be still compatible with the current navigation\ 
system precision. In this way the integrity\ 
information provided by EGNOS is efficiently used\ 
for achieving a higher safety level during\ 
autonomous flight operations.\ 
The selected on-board software architecture is\ 
actually fully compliant to the use of EGNOS based\ 
GPS units, without requiring any upgrade and the\ 
proposed sensor fusion algorithms have been\ 
already developed being basically compatible with\ 
integrity information coming from the future GNSS\ 
sensors. Anyway, in the presented first phase of\ 
flight experiments, we used a coarse DGPS unit,\ 
because EGNOS is still in the testing phase. The\ 
next steps are to perform autonomous GN\&C flight\ 
experiment with EGNOS constellation with a\ 
runway completely not instrumented.\ 
In the first part of the paper, concerning EGNOS\ 
system characterization, is presented an overview of\ 
EGNOS (chapter 2), are described the processing of\ 
the SBAS Signal-In-Space correction and integrity\ 
data and the related algorithm to estimate the\ 
integrity supplied by the system (chapter 3), the\ 
classes of equipment at which the test requirement\ 
are referred and the equipment performance and test
procedure focusing on processing requirements and\ 
the validation performance assessment logic to\ 
assess the performance achievable with EGNOS\ 
(chapter 4). In its second part, describing the\ 
development of GNC algorithms already compatible\ 
with the future GNSS framework, the paper deals\ 
with the autolanding algorithms (chapter 6), the\ 
sensor fusion algorithms to achieve the desired\ 
navigation precision and the methodologies\ 
developed in order to safely manage the possible\ 
presence of sensor failures (chapter 5), the\ 
preliminary results of the real time validation with\ 
hardware in the loop simulation (chapter 7) and,\ 
finally, the algorithm performances achieved during
the first experimental flights by using the CIRA\ 
experimental flying platform (chapter 8).\ 
}, author = {DE LELLIS, E and CORRARO, F and CINIGLIO, U and GAGLIONE, S and CANZOLINO, P and GARBARINO, L and NASTRO, V} } @conference {robustelli2009, title = {Galileo signal design: State of Art}, booktitle = {ENC - GNSS 2009 PROCEEDINGS}, year = {2009}, month = {3-6 MAY}, pages = {{\textendash}}, abstract = {
The Global Positioning System (G.P.S.) has been a\ 
revolutionary system that opened new opportunities\ 
and enabled innovative services for both\ 
governmental and civilian applications.\ 
Rapidly, an efficient and reliable positioning system\ 
has become mandatory for public protection and\ 
security applications. As consequence Europe has\ 
realized the need to develop an independent\ 
positioning system (Galileo) with enhanced\ 
capabilities, performance and an unconditioned\ 
reliability.\ 
Galileo has pursued from the very first moment the\ 
goal of having wide band signals in all its assigned\ 
frequency bands but it was a particularly difficult
task because the band E1 and L1 had already\ 
congested.\ 
It will be at the same time compatible and inter\ 
operable with American G.P.S. Compatibility refers
to the ability of space based positioning, navigation\ 
and timing (P.N.T.) services to be used separately or\ 
together without interfering with each individual\ 
service or signal, and without adversely affecting\ 
navigation warfare.\ 
Interoperability refers to the ability of civil space\ 
base P.N.T. services to be used together to provide
better capabilities at the user level than would be
achieved by relying solely on one service or signal.\ 
To achieve this it was necessary planning special\ 
signal with particular waveform. An important\ 
aspect in designing the modulation scheme is obtain
good spectral properties and suitable spectral\ 
shaping, low interference with existing G.P.S.\ 
signals, good root mean square (R.M.S.) bandwidth,\ 
good time resolution (in order to allow the\ 
separation between channel paths and to decrease\ 
the synchronization errors).\ 
The family of modulations that allowed this was the
B.O.C. (Binary Offset Carrier). This paper is\ 
concerned with this modulation: it will be described\ 
their performance both the transmitter that the\ 
receiver point of view. Moreover after a brief\ 
description of Galileo signal in which will highlight\ 
the differences between the various services to be\ 
provided by Galileo itself, will be introduced the\ 
AltBOC modulation used on E5. Attention will\ 
focused on the signal processing techniques required\ 
to process the AltBOC modulation because they are\ 
much more challenging than those for traditional\ 
BPSK or even for the usual B.O.C. modulation. This\ 
stems from the extremely large bandwidth and from\ 
the complex interaction of 4 components of\ 
spreading code.\ 
}, author = {GAGLIONE, S and ROBUSTELLI, U and SANTAMARIA, R and VULTAGGIO, M} } @conference {60, title = {IMU low cost calibration method}, booktitle = {ENC 2009}, year = {2009}, month = {05/2009}, address = {Naples}, abstract = {
The aim of this work is to propose a low cost\ 
method to calibrate a low cost IMU (Inertial\ 
Measurement Unit). Nowadays, the use of Micro\ 
Electro-Mechanical System instruments is widely\ 
accepted, owing to their great flexibility linked to\ 
their cheap costs. On the other hand, such\ 
peculiarities imply a loss of accuracy and\ 
performances. In order to have an instrument being\ 
completely low cost, also a low cost calibration\ 
procedure is required.\ 
In the present paper experiments on low cost IMU\ 
are discussed; the tested instrument is composed of
a cluster of almost orthogonal accelerometers and\ 
gyroscopes, based on MEMS technology. For both\ 
the accelerometers and the gyros, the proposed\ 
calibration method is based on the use of magnitude
of reference quantities instead of the single\ 
component value.
}, author = {ANGRISANO, A and Nocerino, E and Troisi, S and DEL CORE, G} } @article {gaglione2009, title = {Multi-Constellation System as Augmentation to GPS Performance in Difficult Environment or Critical Applications}, journal = {ATTI DELL{\textquoteright}ISTITUTO ITALIANO DI NAVIGAZIONE}, volume = {190}, year = {2009}, note = {Paper Selected from the ENC - 2009 Conference held in Naples on 4 - 6 May 2009}, pages = {{\textendash}}, abstract = {
The GPS Standard Positioning Service (SPS) does\ 
not provide suitable performance in all environment
conditions or in every possible applications. In\ 
severely signal degraded environments, e.g.\ 
mountainous or urban areas, where a lot of GPS\ 
signals are blocked by buildings or natural\ 
obstacles, the positioning is inaccurate because of
bad satellite configuration or impossible owing to\ 
lack of minimum number of visible satellites.\ 
Otherwise GPS SPS is inadequate for critical safety
applications like aircraft take-off or landing, because\ 
does not satisfy the Required Navigation Parameters
(RNP) relative to these flight phases.\ 
To solve the GPS gap on regional scale, space-based
augmentations could be employed. In this study a\ 
simulation is carried out, considering GLONASS\ 
and EGNOS GEO constellations and a set of 3\ 
geosynchronous satellites (similar to QZSS space\ 
segment). A software for constellation analysis is\ 
developed in MATLAB{\textregistered} environment to evaluate\ 
the considered augmentations performances in\ 
critical conditions (urban canyon or critical phase of\ 
flight). The used indicators to evaluate coverage\ 
performance are the VSN (Visible Satellites\ 
Number), DOP (Dilution of Precision) and the\ 
probability that integrity is available to be computed\ 
in autonomous.\ 
}, issn = {1120-6977}, author = {ANGRISANO, A and GAGLIONE, S and PACIFICO, A and VULTAGGIO, M} } @conference {57, title = {Augmentation satellites constellations, a simulation on EGNOS and QZSS for Europe coverage}, booktitle = {ENC 2008}, year = {2008}, month = {04/2008}, address = {Toulouse, France, 22-25 April}, abstract = {

The current GPS civil service provides suitable\ 
performance only in situations of good electromagnetic
visibility; the positioning becomes difficult in severely
signal degraded environments, e.g. mountainous or urban
areas, where a lot of GPS signals are blocked by
buildings or natural obstacles. In these situations GPS
could supply only inaccurate positioning or even could be
not able to provide position, owing to bad geometry or
lack of minimum number of visible SV. In this study
simulation software has been developed in MATLAB{\textregistered}
environment in order to study the integration of existent
and feasible constellations. Detailed coverage analysis of
a super-constellation made up of GPS-EGNOS-QZSS
will be presented based on existent GPS-EGNOS
satellites and hypothetical Shifted-QZSS constellation
over Europe. Good results were noticed by integration of
all the considered constellations for a wide service area,
even for middle values of mask angles.
}, author = {ANGRISANO, A and PACIFICO, A and VULTAGGIO, M} } @article {59, title = {Copertura della Costellazione QZSS (Quasi-Zenith Satellite System)}, journal = {ATTI DELL{\textquoteright}ISTITUTO ITALIANO DI NAVIGAZIONE}, volume = {187}, year = {2008}, chapter = {91}, abstract = {
The objective of this work is the study of the QZSS constellation coverage; QZSS is a satellite\ 
system planned by Japan space agency as a GPS augmentation, to improve performances above all\ 
in zones with high urbanization, characterized by the so-called {\textquotedblleft}urban canyon{\textquotedblright}. In these zones a lot\ 
of GPS signals are blocked by buildings and they can{\textquoteright}t be used by GPS receivers, so there are often\ 
bad satellite observation geometries with no precise or even impossible positioning. QZSS\ 
satellites, because their orbital parameters, stay for a lot of hours in a day above the served areas\ 
with great elevation angles and so they give a good solution to the blocking problem in the towns.\ 
In this analysis to verify the improving of GPS coverage on Japan territory with QZSS satellites, it{\textquoteright}s
been made a computer simulation, which confirm the QZSS usefulness.\ 
Such coverage improvement could be obtained in every place of earth, because of quasi-symmetry\ 
of GPS constellation, changing the reference meridian of QZSS ground tracks; so it{\textquoteright}s been made the\ 
same simulation for Italy too, with more details obtained using a 3D model of an area of the centre\ 
of Naples.\ 
}, issn = {1120-6977}, author = {ANGRISANO, A and PACIFICO, A and VULTAGGIO, M} } @article {58, title = {Solving GPS gap, Coverage analysis of a superconstellation made up of GPS+EGNOS+S-QZSS}, volume = {IV}, year = {2008}, abstract = {

The current GPS civil service provides suitable performance only in situations of good electromagnetic visibility; the positioning becomes difficult in severely signal degraded environments, e.g. mountainous or urban areas, where a lot of GPS signals are blocked by buildings or
natural obstacles. The GPS gaps can be partially solved employing spacebased augmentations systems; in this paper we consider geostationary and geosynchronous constellations. A simulation software has been developed in MATLAB{\textregistered} environment in order to study the integration of existent and feasible constellations.

}, url = {http://mycoordinates.org/volume-iv-issue-6-june-2008/}, author = {ANGRISANO, A and PACIFICO, A and VULTAGGIO, M} } @conference {gaglione2007, title = {Integrazione Del Convertiplano Erica Nell{\textquoteright}ATM Europeo: Possibili Scenari Operativi}, booktitle = {Atti del XIX Congresso Nazionale AIDAA}, year = {2007}, month = {17-21 Settembre }, pages = {{\textendash}}, abstract = {
Il settore del trasporto aereo {\`e} in forte evoluzione: l{\textquoteright}esplosione e il rafforzamento dei vettori low cost, il\ 
cambiamento del ruolo delle alleanze, la concorrenza dei sistemi ferroviari ad alta velocit{\`a} e le difficolt{\`a}\ 
derivanti dal contesto macroeconomico mettono a dura prova gli assetti del settore.\ 
Molte di queste tensioni, frutto delle dinamiche concorrenziali all{\textquoteright}interno del mercato del trasporto passeggeri,\ 
si scaricano in maniera diretta sulle compagnie aeree e solo in via indiretta sugli altri attori del sistema come\ 
ad esempio i progettisti e i costruttori di velivoli. Questi ultimi hanno recentemente cercato di riprendere e\ 
rilanciare in campo civile un aeromobile da tempo operativo in campo militare, il convertiplano. In questo\ 
lavoro verr{\`a} mostrato l{\textquoteright}esito di una attenta analisi sullo stato dell{\textquoteright}arte sui concetti e sulle procedure che sono\ 
gi{\`a} operative su alcuni aeroporti e negli spazi aerei degli Stati Uniti o sono allo studio nell{\textquoteright}ambito di ricerche in\ 
altri Paesi .\ 
Sar{\`a} poi fornita una panoramica dell{\textquoteright}ambiente operativo includendovi tutte le possibili operazioni tilt-rotor, per\ 
tutte le fasi del volo (decollo, atterraggio, en-route) e tutti i requisiti necessari ad operare nel dominio ATM.\ 
Particolare rilievo sar{\`a} posto all{\textquoteright}identificazione di tutti i servizi richiesti dalle operazioni del convertiplano\ 
civile. Sulla base dei risultati ottenuti, verranno sviluppati i possibili scenari operativi nel cielo europeo e si\ 
evidenzieranno i potenziali benefici e vantaggi rispetto alle operazioni odierne.\ 
}, author = {GAGLIONE, S and CIABURRI, M and DEL CORE, G and ROBUSTELLI, U and VACCARO, C} } @conference {gaglione2006-2, title = {European Augmentation Service - a GNSS Monitoring in South Europe Region}, booktitle = {Proceedings of 12th IAIN World Congress - 2006 International Symposium on GPS / GNSS. Jeju, Korea}, year = {2006}, month = {October 18-20,}, pages = {33{\textendash}37}, abstract = {
In the Civil Aviation field, the international trend (through ICAO, EUROCONTROL) is to adopt one positioning\ 
system that allows to follow more flight phases. This will allow to release themselves by ground installations and\ 
optimize the traffic flows following the aRea Navigation (RNAV) concept. In order to realize this goal the European\ 
Scientific Community is focusing on Augmentation Systems based on Satellite infrastructure (SBAS - Satellite Based\ 
Augmentation System) and on Ground based one (GBAS - Ground Based Augmentation System).\ 
The goal of this work is to present some results on SBAS and GBAS performances.\ 
Regarding SBAS, after the acquisition of a Novatel OEM4 SBAS receiver, the Department of Applied Sciences of\ 
Parthenope University created a monitoring station that reflects as much as possible a standardized measure\ 
environment for EGNOS Data Collection Network (EDCN), established by Eurocontrol.\ 
The Department of Applied Science decided to carry out a own monitoring survey to verify the performance of\ 
EGNOS that can be achieved in South Europe region, a zone not fully covered by official (EDCN) monitoring\ 
network.\ 
Regarding GBAS, starting from a data set of measurements carried out at the GBAS of Milan-Linate airport where\ 
we worked on a ground installation (GMS {\textendash} Ground Monitoring Station) that supervises the GBAS signal and that\ 
represents, for our purposes, the Aircraft subsystem. So the set of collected data is to be considered in RTK mode and\ 
after the measurements session we processed them with the software PEGASUS v 4.11. Both experiences give us the\ 
possibility to evaluate the GNSS1 performance that can be achieved.
}, author = {GAGLIONE, S and VULTAGGIO, M and PACIFICO, A} } @conference {gaglione2006-1, title = {GBAS - Ground Based Augmentation System, an Italian Experience}, booktitle = {Proceedings of European Navigation Conference (ENC) 2006}, year = {2006}, month = {May 7-10,}, pages = {{\textendash}}, abstract = {
The GNSS (Global Navigation Satellite Systems) are not sufficient to support Air Navigation\ 
in specific applications; so it is necessary to introduce Augmentation Systems. In the last years\ 
the European Scientific Community are focusing on Augmentation Systems based on Satellite\ 
infrastructure (SBAS - Satellite Based Augmentation System) and on Ground based ones\ 
(GBAS - Ground Based Augmentation System).\ 
The purpose of this work is to verify GBAS performance. We started from a data set of measurements carried out at the GBAS of Milan-Linate where we work on a ground installation\ 
(GMS {\textendash} Ground Monitoring Station) that supervise the GBAS signal and that represent, for\ 
our purposes, the Aircraft subsystem. So the set of data collected is to be considered in RTK\ 
mode and after the measures session we processed them with the software PEGASUS v 4.0.\ 
Some results on availability, integrity and accuracy are reported and discussed.\ 
}, author = {GAGLIONE, S and VULTAGGIO, M} } @conference {gaglione2006-3, title = {Simulazione di un test di integrit{\`a} mediante tecnologia RAIM}, booktitle = {Proceedings 10a Conferenza Nazionale ASITA}, year = {2006}, month = {14 - 17 Novembre}, pages = {829{\textendash}834}, author = {GAGLIONE, S and ROBUSTELLI, U and D{\textquoteright}AVANZO, M} } @mastersthesis {66, title = {Sviluppo di Software per lo Studio della Visibilit{\`a} dei Satelliti della Costellazione GPS}, volume = {MSc}, year = {2006}, school = {Parthenope}, address = {Naples}, author = {ANGRISANO, A} } @conference {gaglione2006, title = {Virtual Ground Based Augmentation System}, booktitle = {12th IAIN World Congress - 2006 International Symposium on GPS / GNSS Proceedings}, year = {2006}, month = {October 18-20,}, pages = {{\textendash}}, abstract = {
Since 1993, the civil aviation community through RTCA (Radio Technical Commission for Aeronautics)\ 
and the ICAO (International Civil Air Navigation Organization) have been working on the definition of GNSS\ 
augmentation systems that will provide improved levels of accuracy and integrity. These augmentation systems have\ 
been classified into three distinct groups: Aircraft Based Augmentation Systems (ABAS), Space Based Augmentation\ 
Systems (SBAS) and Ground Based Augmentation Systems (GBAS).\ 
The last one is an implemented system to support Air Navigation in CAT-I approaching operation. It\ 
consists of three primary subsystems: the GNSS Satellite subsystem that produces the ranging signals and navigation\ 
messages; the GBAS ground subsystem, which uses two or more GNSS receivers. It collects pseudo ranges for all\ 
GNSS satellites in view and computes and broadcasts differential corrections and integrity-related information; the\ 
Aircraft subsystem. Within the area of coverage of the ground station, aircraft subsystems may use the broadcast\ 
corrections to compute their own measurements in line with the differential principle. After selection of the desired\ 
FAS for the landing runway, the differentially corrected position is used to generate navigation guidance signals.\ 
Those are lateral and vertical deviations as well as distance to the threshold crossing point of the selected FAS and\ 
integrity flags.\ 
The Department of Applied Science in Naples has create for its study a virtual GBAS Ground station.\ 
Starting from three GPS double frequency receivers, we collect data of 24h measures session and in post processing\ 
we generate the GC (GBAS Correction). For this goal we use the software Pegasus V4.1 developed from\ 
EUROCONTROL. Generating the GC we have the possibility to study and monitor GBAS performance and integrity\ 
starting from a virtual functional architecture. The latter allows us to collect data without the necessity to found us\ 
authorization for the access to restricted area in airport where there is one GBAS installation.\ 
}, author = {GAGLIONE, S and DEL CORE, G and VULTAGGIO, M and PACIFICO, A} } @conference {gaglione2005, title = {Primi risultati del sistema sperimentale GBAS}, booktitle = {Atti della 9a Conferenza Nazionale ASITA}, year = {2005}, month = {15 - 18 Novembre}, pages = {{\textendash}}, abstract = {
The GNSS (Global Navigation Satellite Systems-GPS+GLONASS) are not sufficient to\ 
support Air and Maritime Navigation in specific applications; so it is necessary to introduce Augmentation Systems. In last years the European Scientific Community are focusing its attention on\ 
Augumentation Systems based on Satellite infrastructure (SBAS - Satellite Based Augmentation\ 
System) and on Ground based one (GBAS - Ground Based Augmentation System).\ 
This one is a implemented system to support Air Navigation in CAT-I approaching operation.\ 
The purpose of this work is to verify GBAS performance. So we started from a data set of measures\ 
collected at the GBAS installation of Milano Linate and we process this with the software\ 
PEGASUS v 4.0.Some results on availability, integrity and accuracy are reported and discussed.\ 
}, author = {GAGLIONE, S and GERVASONI, P and VULTAGGIO, M} } @article {gaglione2004-1, title = {Egnos System Test Bed}, journal = {ATTI DELL{\textquoteright}ISTITUTO ITALIANO DI NAVIGAZIONE}, year = {2004}, pages = {23{\textendash}30}, abstract = {
Questo articolo descrive quali sono le informazioni aggiuntive che il sistema di augmentation EGNOS fornisce. In particolare si considerano le correzioni inviate dal primo prototipo di EGNOS\ 
(European Geostationary Navigation overlay Service) e cio{\`e} l{\textquoteright} ESTB ( Egnos System Test Bed).\ 
Per una pi{\`u} completa documentazione si pu{\`o} far riferimento a quella prodotta da Eurocontrol ed\ 
eventualmente contattare l{\textquoteright}ing. Santiago SOLEY e l{\textquoteright}ing. Rick Farnworth.\ 
}, issn = {1120-6977}, author = {COZZOLINO, T and GAGLIONE, S} } @conference {gaglione2004, title = {Integrazione di un Sistema Inerziale con Misure Satellitari}, booktitle = {Atti della 8a Conferenza Nazionale ASITA}, year = {2004}, month = {14 {\textendash} 17 dicemb}, pages = {{\textendash}}, abstract = {
Abstract: The stand-alone inertial systems present advantages but also severe limitations owing to\ 
unbounded position errors as well as GPS presents limitations such as poor geometry, dynamic\ 
noise and satellite masking; consequently the integration of GPS receivers into existing inertial\ 
navigation systems appears very attractive. This paper describes a design approach to such integration and the corresponding advantages.
}, author = {COZZOLINO, T and GAGLIONE, S and NASTRO, V and SANTAMARIA, R} } @article {gaglione2004, title = {Prova sperimentale di un SBAS nell{\textquoteright}Italia Meridionale}, journal = {ATTI DELL{\textquoteright}ISTITUTO ITALIANO DI NAVIGAZIONE}, year = {2004}, pages = {10{\textendash}23}, abstract = {
\ In quest{\textquoteright}articolo si riportano i risultati di misure effettuate in diverse localit{\`a} del sud Italia.\ 
Esse fanno parte di una fase di sperimentazione programmata da Eurocontrol che ha messo a disposizione del nostro gruppo la strumentazione necessaria per l{\textquoteright}acquisizione delle serie temporali\ 
in modalit{\`a} statica.\ 
}, issn = {1120-6977}, author = {COZZOLINO, T and GAGLIONE, S} }