EGNOS System Test Bed: Achievements and Ongoing Upgrades

Andrés Cruz, Joaquín Cosmen, José María Legido, José Caro, Hugues Secretan and Norbert Suard

Abstract:	The EGNOS System Test Bed (ESTB) has been developed as a main tool for supporting EGNOS (European Geostationary Navigation Overlay Service) design and demonstration to users. After a successful design and development process, the ESTB became operational in January 2000 and a MOPS [1] compliant Signal-In-Space (SIS) is today available through INMARSAT AOR-E providing the first continuous GPS augmentation service within Europe. In parallel, other initiatives led by the European Space Agency (ESA) and the European Commission (EC) are being carried out to analyze the possibilities of expanding the EGNOS service outside of Europe. Areas of specific interest for that service expansion are Africa, South- America, India and Russia. In order to demonstrate the EGNOS expansion capabilities, the ESTB is currently being upgraded to implement the required modifications. This paper will present the current ESTB performance as the basis for the experimentation being carried out in support of EGNOS design. In particular, achieved performance in terms of accuracy, availability and integrity will be shown. Very promising results have been achieved considering the number of currently available Ranging and Integrity Monitoring Stations (RIMS). In addition, the paper will also present the concepts and required design modifications in support to service expansion, as well as the infrastructure being developed for investigating the performance in the expanded area. Some considerations related to potential SARPS/MOPS modification to improve the service expansion capabilities will also be discussed. Keywords: EGNOS, EGNOS System Test Bed (ESTB), Service Expansion, Performance.
Published in:	Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000) September 19 - 22, 2000 Salt Palace Convention Center Salt Lake City, UT
Pages:	199 - 208
Cite this article:	Cruz, Andrés, Cosmen, Joaquín, Legido, José María, Caro, José, Secretan, Hugues, Suard, Norbert, "EGNOS System Test Bed: Achievements and Ongoing Upgrades," Proceedings of the 13th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2000), Salt Lake City, UT, September 2000, pp. 199-208.
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