High Precision Algorithm for Phase Estimates

Alexander Steingass

Abstract:	High precision GPS receivers are using the estimation of the carrier phase to determine their position as precisely as possible. Since the GPS signal contains both the spreading code and the data signal this detection has to be performed incoherently. The result is a loss in accuracy, the so called squaring loss. This article presents a new technique to avoid this squaring loss. This is done by using a combination of a coherent and incoherent PLL. On using this concept the gain can reach values up to 3 dB in noise subpression performance.
Published in:	Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001) September 11 - 14, 2001 Salt Palace Convention Center Salt Lake City, UT
Pages:	214 - 217
Cite this article:	Steingass, Alexander, "High Precision Algorithm for Phase Estimates," Proceedings of the 14th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2001), Salt Lake City, UT, September 2001, pp. 214-217.
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