EGNOS 1046 Maritime Service Assessment

The present contribution evaluates how the European Geostationary Navigation Overlay System (EGNOS) meets the International Maritime Organization (IMO) requirements established in its Resolution A.1046 for navigation in harbor entrances, harbor approaches, and coastal waters: 99.8% of signal availab...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2020-01, Vol.20 (1), p.276
Main Authors: Ibáñez Segura, Deimos, Rovira Garcia, Adrià, Alonso, María Teresa, Sanz, Jaume, Juan, José Miguel, González Casado, Guillermo, López Martínez, Manuel
Format: Article
Language:English
Subjects:
Accuracy
Availability
Aviation
Coastal waters
global navigation satellite system (gnss)
Global positioning systems
GPS
international maritime organization (imo)
Ionosphere
Navigation systems
Receivers & amplifiers
satellite based augmentation system (sbas)
Satellite based augmentation systems
Satellites
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Summary:The present contribution evaluates how the European Geostationary Navigation Overlay System (EGNOS) meets the International Maritime Organization (IMO) requirements established in its Resolution A.1046 for navigation in harbor entrances, harbor approaches, and coastal waters: 99.8% of signal availability, 99.8% of service availability, 99.97% of service continuity and 10 m of horizontal accuracy. The data campaign comprises two years of data, from 1 May 2016 to 30 April 2018 (i.e., 730 days), involving 108 permanent stations located within 20 km of the coast or in islands across the EGNOS coverage area, EGNOS corrections, and cleansed GPS broadcast navigation data files. We used the GNSS Laboratory Tool Suite (gLAB) to compute the reference coordinates of the stations, the EGNOS solution, as well as the EGNOS service maps. Our results show a signal availability of 99.999%, a horizontal accuracy of 0.91 m at the 95th percentile, and the regions where the IMO requirements on service availability and service continuity are met. In light of the results presented in the paper, the authors suggest the revision of the assumptions made in the EGNOS Maritime Service against those made in EGNOS for civil aviation; in particular, the use of the EGNOS Message Type 10.
ISSN:1424-8220
1424-8220
DOI:10.3390/s20010276