EGNOS Flight Trials, Evaluation of EGNOS Performance and Prospects

H.P.J. Veerman and P. Rosenthal

Abstract:	In 2004 and 2005 EGNOS, the European SBAS implementation, was tested both under static and dynamic conditions as part of the EGNOS-AIV System Verification. The dynamic measurements were collected by means of aircraft flight trials. The objectives of these flight trials were primarily focusing on the EGNOS system verification; collected data were used as input for the EGNOS Operational Readiness Review, which was held and passed in June 2005. Apart from the EGNOS system verification, the flight trials experiment set-up and selected locations also supported assessment of EGNOS' aircraft guidance capabilities under various flight conditions and based on this showed possible prospects of EGNOS for the aeronautical community. After briefly describing the EGNOS architecture and specifying the primary and secondary objectives of the EGNOS-AIV flight trials, the experimental set-up and execution of EGNOS flight trials at four locations in Europe are presented, including the design of the Lugano offset-approach and Almeria RNAV procedures. Results of GPS/EGNOS guidance capability vs. ILS are provided in terms Navigation Sensor Error (NSE), Flight Technical Error (FTE) and Total System Error (TSE). This guidance capability together with EGNOS' accuracy, availability, integrity and continuity figures vs. ICAO Navigation Service Levels APV I, APV II and Cat I shows, although not yet fully mature at the time, with EGNOS the advent of a promising new European navigation aid for the aeronautical community, especially for those environments and procedures for which the traditional means such as ILS either cannot be used or are not available.
Published in:	Proceedings of the 2006 National Technical Meeting of The Institute of Navigation January 18 - 20, 2006 Hyatt Regency Hotel Monterey, CA
Pages:	358 - 367
Cite this article:	Veerman, H.P.J., Rosenthal, P., "EGNOS Flight Trials, Evaluation of EGNOS Performance and Prospects," Proceedings of the 2006 National Technical Meeting of The Institute of Navigation, Monterey, CA, January 2006, pp. 358-367.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In