Reliable Vessel Navigation System Based on Multi-GNSS -A. Angrisano文档.pdf

Proceedings of 12th International Conference on Marine Navigation and Safety of Sea Transportation, TransNav 2017 21-23 June 2017, Gdynia, Poland Reliable Vessel Navigation System Based on Multi-GNSS A. Angrisano G. Fortunato University, Benevento, Italy S. Gaglione, S. Del Pizzo, G. Castaldo S. Troisi Parthenope University of Naples, Napoli, Italy ABSTRACT: One of the most recent aims established by IMO (International Maritime Organization) is the improved reliability and integrity of navigation information, in order to enhance navigation safety and security services at sea. Actually, the GPS (Global Positioning Systems) and AIS (Automatic Identification System) provide ship position, speed and course to VMS (Vessel Management System) platforms, without any consideration about the safety and security. The reliable navigation system proposed is based on a multi – GNSS satellite receiver and on vessel speed log and direction finder (magnetic or gyro compass). The robustness of navigation solution in ensured by: RAIM (Receiver Autonomous Integrity Monitoring) algorithms able to avoid (or limit) the consequences of gross errors between measurements, and by a coherence check between GNSS and position solution provided by a Dead Reckoning algorithm, based on log and compass measurement, able to highlight drift in position domain, caused for example by spoofing on GNSS receiver. In order to validate the algorithms, several tests have been carried out in different scenario, in static and kinematic condition. 1 INTRODUCTION Backward algorithms (Angrisano et al. 2013, Castaldo et al. 2014), which have the purpose of When a vessel