Statistical Characterization of Hardware Biases in GPS+GLONASS Receivers

Dmitry Kozlov, Michael Tkachenko and Andrei Tochilin

Abstract:	In this paper, we investigate some sources of biases affecting differential GPS+GLONASS positioning. The main attention is taken to GLONASS hardware biases which are often the most dangerous error source for precise GPS+GLONASS Real Time Kinematic (RTK) with On The Fly (OTF) Ambiguity Resolution (AR). Based on experimental data, code and carrier phase hardware biases for different GPS+GLONASS receivers are analyzed. We characterize the biases within one family of receivers as well as biases between receivers of different types. The effect of biases on RTK performance is investigated. The paper describes some decisions mitigating the negative effect of biases. We demonstrate how these solutions being incorporated into GPS+GLONASS RTK system improve float and fixed ambiguity performance.
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:	817 - 826
Cite this article:	Kozlov, Dmitry, Tkachenko, Michael, Tochilin, Andrei, "Statistical Characterization of Hardware Biases in GPS+GLONASS Receivers," 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. 817-826.
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