A Translated GPS System for Range Telemetry

Hung Seok Seo, Jong Phil Lee, Seol Mook Kang, Chansik Park and Sang Jeong Lee

Abstract:	A translated GPS system, which consists of a translator and a ground station, is designed and implemented in this paper. The translator equipped on a vehicle receives Lband GPS signal, translates it to S-band and retransmits to the ground station. The ground station performs necessary signal processing to obtain the position and the velocity of the vehicle. In order to get the navigation solution in high maneuvering environments, fast acquisition and robust signal tracking features are needed. A matched filter is designed for the fast acquisition, and the bandwidth of the tracking loop is adjusted for robust signal tracking using a predetermined flight scenario. The translated GPS system is designed to track up to 7 satellites and to provide the position and the velocity of the vehicle at 20Hz rate. The code acquisition can be done within 100msec. It is expected that the implemented system will meet the tracking requirements of signals; 9,000m/sec velocity, 50g acceleration, and 50g/sec jerk.
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:	344 - 351
Cite this article:	Seo, Hung Seok, Lee, Jong Phil, Kang, Seol Mook, Park, Chansik, Lee, Sang Jeong, "A Translated GPS System for Range Telemetry," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 344-351.
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