Analysis of Recent Wide Area Augmentation System (WAAS) Flight Tests

Franklin Haas Jr, and Marie Lage

Abstract:	From May 3 1 through June 3, 1994, extensive flight tests were conducted with the FAA’s Navigation Satellite Testbed (NSTB) configured for evaluating GPS/Wide Area Augmentation System (WAAS) performance. The WAAS test program is intended to demonstrate the technical feasibility of enhancing the integrity, accuracy, and availability of the Global Positioning System (GPS) by providing: GPS satellite integrity status, wide-area differential corrections, and additional ranging via signals broadcast at L-band by an Inmarsat-2 a geostationary satellite. The purpose of the mid-1994 flight tests was to demonstrate the fmt of these two capabilities using multiple aircraft in various phases of flight at opposite ends of the country. In addition to four cross-country flights, over 130 approaches were made in New Jersey, California, and Ontario. This paper presents a statisticaI analysis of these flight test results in terms of positioning errors, WAAS cotrection errors, WAAS message quality, and WAAS message timing.
Published in:	Proceedings of the 1995 National Technical Meeting of The Institute of Navigation January 18 - 20, 1995 Disneyland Hotel Anaheim, CA
Pages:	347 - 355
Cite this article:	Jr, Franklin Haas, Lage, Marie, "Analysis of Recent Wide Area Augmentation System (WAAS) Flight Tests," Proceedings of the 1995 National Technical Meeting of The Institute of Navigation, Anaheim, CA, January 1995, pp. 347-355.
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