Analysis and Test Results of AIMS GPS/INS System

Ren Da

Abstract:	This paper presents an integrated GPS/INS system developed for centimeter-level positioning applications over long baselines. The system applies a tightly coupled integration structure, in which inertial measurements are combined optimally with dual frequency GPS carrier phase observations by the use of the Kalman filtering technique. The tight integration structure allows feedback calibration of sensor errors and use of GPS observations even when less than four GPS satellites are tracked. An effective On-The-Fly ambiguity resolution technique is implemented, in which inertial position predictions are utilized for reliable cycle-slip detection and fast integer ambiguity resolution. System performance was validated by road and flight tests. The results show that the integrated GPS/lNS system is able to provide highly accurate navigation information.
Published in:	Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997) September 16 - 19, 1997 Kansas City, MO
Pages:	771 - 780
Cite this article:	Da, Ren, "Analysis and Test Results of AIMS GPS/INS System," Proceedings of the 10th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1997), Kansas City, MO, September 1997, pp. 771-780.
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