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EGNOS 1046 Maritime Service Assessment.

Deimos Ibáñez Segura1, Adrià Rovira Garcia1, María Teresa Alonso1

  • 1Research Group of Astronomy and Geomatics (gAGE), Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain.

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|January 18, 2020
PubMed
Summary
This summary is machine-generated.

The European Geostationary Navigation Overlay System (EGNOS) exceeds International Maritime Organization (IMO) requirements for coastal navigation, demonstrating superior signal availability and horizontal accuracy.

Keywords:
Global Navigation Satellite System (GNSS)International Maritime Organization (IMO)Satellite Based Augmentation System (SBAS)

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Area of Science:

  • Satellite Navigation Systems
  • Maritime Safety
  • Geodesy

Background:

  • The International Maritime Organization (IMO) has established performance standards for navigation systems in Resolution A.1046.
  • The European Geostationary Navigation Overlay System (EGNOS) is a crucial component of maritime navigation infrastructure.

Purpose of the Study:

  • To assess EGNOS performance against IMO Resolution A.1046 requirements for maritime navigation.
  • To evaluate EGNOS signal availability, service availability, service continuity, and horizontal accuracy in coastal waters.

Main Methods:

  • Utilized two years of data (May 2016 - April 2018) from 108 permanent stations.
  • Employed the GNSS Laboratory Tool Suite (gLAB) for data processing and analysis.
  • Computed EGNOS solutions and generated EGNOS service maps.

Main Results:

  • Achieved a signal availability of 99.999%, surpassing the 99.8% IMO requirement.
  • Demonstrated a horizontal accuracy of 0.91 m at the 95th percentile, significantly better than the 10 m requirement.
  • Identified regions where EGNOS meets IMO service availability and continuity standards.

Conclusions:

  • EGNOS performance meets and exceeds critical IMO requirements for maritime navigation in coastal areas.
  • The study suggests revising EGNOS Maritime Service assumptions, particularly regarding EGNOS Message Type 10, to align with aviation standards.