An Introduction to the EGNOS Central Processing Facility (CPF)

J.Westbrook, A. Rerolle, H. Blomenhofer, I. McAnany, J. Cosmen and W. Werner

Abstract:	The European Geostationary Navigation Overlay Service (EGNOS) is being developed in Europe to provide users with regional augmentation to the existing satellite constellations of GPS and GLONASS. The EGNOS System is being designed to serve a multi modal community in Europe, of which the principle users are expected to be Civil Aviation, Maritime, In-Land Water Navigation and docking, rail and road transport and traffic monitoring systems. For civil aviation, EGNOS Advanced Operational Capability (AOC) will provide the technical capability of a primary means service of navigation for en-route oceanic and continental, non-precision approach and CAT-I precision approach within the ECAC (European Civil Aviation Conference) area. EGNOS Full Operational Capability (FOC), which follows the AOC phase, will include the certification of the EGNOS service. The provision of real time Navigation and Integrity Information for Europe's multi-modal users is undertaken by the EGNOS Central Processing Facility (CPF). This paper presents the architecture and design of the CPF and introduces its two major components, namely the CPF Processing Set and the CPF Check Set. The algorithms which are used to provide the Navigation and Integrity Information for EGNOS are introduced and a presentation on the expected performances available to EGNOS users is made and consolidated with test results.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	6 - 13
Cite this article:	J.Westbrook,, Rerolle, A., Blomenhofer, H., McAnany, I., Cosmen, J., Werner, W., "An Introduction to the EGNOS Central Processing Facility (CPF)," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 6-13.
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