Inertial-Aided Cycle-Slip Detection/Correction for Precise, Long-Baseline Kinematic GPS

Oscar L. Colombo, Udayan V. Bhapkar, Alan G. Evans

Abstract:	Recent techniques for long-range kinematic differential GPS positioning using the carrier phase make it possible to maintain sub-decimeter precision over many hours of trajectory determination, at a thousand kilometers from all reference receivers. An Inertial Navigation System (INS), combined with GPS, extends the usefulness of the long-range technique to find position at higher rates than with GPS alone, and helps fill in gaps in the GPS solution. Also, as shown in this paper, even a moderately accurate (and low-price) small, lightweight, and portable INS can substantially enhance the ability to detect and correct GPS phase measurement cycle slips. In the near future, inertial units are expected to become more precise and also less expensive than the one used for this test.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	1915 - 1922
Cite this article:	Colombo, Oscar L., Bhapkar, Udayan V., Evans, Alan G., "Inertial-Aided Cycle-Slip Detection/Correction for Precise, Long-Baseline Kinematic GPS," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 1915-1922.
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