GPS/SBAS Receiver Flight Test in Japan

Masato Kawai, Hiroyuki Nakao, Kazuyoshi Wakasa, Kazuaki Hoshinoo and Minoru Ito

Abstract:	In 1999, a prototype of GPS/SBAS receiver developed by FURUNO Electric Co., Ltd. was presented at the WAAS Session of ION-GPS ’99. [1] Thereafter the performance evaluation of the receiver has been carried out both in the U.S. and Japan, using GPS signals with and without SA, and GEO’s ranging signal. Firstly, the flight tests in Japan are presented. The result shows the vertical accuracy of 9.57 m 95 % with the horizontal accuracy of 9.10 m 95 %. Using correction data generated by Electronic Navigation Research Institute (ENRI) instead of POR is also presented. Secondly, the fixed-point (static) receiving tests in the U.S are presented. One of the best results shows the vertical accuracy of 5.36 m 95 % with the horizontal accuracy of 4.22 m 95 %. Thirdly, the static receiving tests performed in Japan before and after SA-OFF is presented. In the static tests, an effect of using GEO’s ranging was examined. Results imply that there is a tendency of reducing accuracy when GEO’s ranging signal is used in Japan, while in the U.S., there is no such an accuracy reduction tendency at all. The GEO’s ranging signal rather improves both availability and accuracy in the latter case. This paper also discusses a few MOPS issues.
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:	266 - 276
Cite this article:	Kawai, Masato, Nakao, Hiroyuki, Wakasa, Kazuyoshi, Hoshinoo, Kazuaki, Ito, Minoru, "GPS/SBAS Receiver Flight Test in Japan," 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. 266-276.
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