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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
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EGNOS Performance Improvement in Southern Latitudes
1 Geotopos S.A., Athens, Greece
ABSTRACT: This paper intends to provide results from ?EGNOS Performance Improvement in Southern Latitudes? (EPISOL) project. EPISOL is performed by the Greek company GEOTOPOS S.A. under a contract with the European Space Agency (ESA). EPISOL project aims at analysing, testing and validating the European SBAS EGNOS (European Geostationary Navigation Overlay Service) performance, by outpointing advantages and limitations. It has been designed and operated in a very complicated and demanding environment, the Aegean Sea (Greece, Southern Europe), in which a huge amount of commercial and cruise vessel routes are scheduled daily. Technically, EPISOL also exploits the possibility of EGNOS data collection through other means than the direct Signal in Space (SiS), such as SiSNet (Signal in Space through interNet). Results from this project will form a solid basis towards navigation service improvements and safety enhancements for highly demanded maritime applications, providing important information about EGNOS performance at the edge of the system's service area. In this frame, EPISOL includes a significant number of trials and collection of a large amount of data on coasting vessels in the Aegean before and after the operation of EGNOS Ranging and Integrity Monitoring Station (RIMS) in Athens. As EGNOS data analysis illustrates the European SBAS performance, arguably well-established GNSS navigation techniques, such as GPS RTK, offer reference trajectories for direct comparisons on the position domain.
REFERENCES
Revised Maritime Policy and Requirements for a Future Global Navigation Satellite System (GNSS), IMO Resolution A.915(22) adopted on 29 November 2001.
World-wide Radionavigation System, IMO Resolution A.953 (23) adopted on 5 December 2003.
World-wide Radionavigation System. Evaluation of Galileo Performance against Maritime GNSS Requirements, IMO Sub-Committee on Safety of Navigation NAV 49/13, 16 April 2003.
EGNOS Service Definition Document Open Service, Ref: EGN-SDD OS V1.1, European Commission Directorate-General for Energy and Transport.
EGNOS Safety of Life Service Definition Document, Ref: EGN-SDD SoL, V1.0, European Commission Directorate-General for Energy and Transport.
Citation note:
Panagiotopoulou L., Frangos K.: EGNOS Performance Improvement in Southern Latitudes. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 5, No. 2, pp. 213-221, 2011

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