Fast Acquisition by Matched Filter Technique for GPS/GLONASS Receivers

Sergey V. Lyusin, Ilia G. Khazanov, Sergey V. Likhovid

Abstract:	In this paper we describe a scheme for fast GPS/GLONASS signal search. It performs parallel signal search based on matched filtering technique. This approach seems to be simpler than well known Fast Fourier Transform (FFT) technique. In the paper, we analyze the proposed scheme and give some test results. It may be concluded that our scheme accelerates the signal search in hundreds times over standard sequential search techniques. As a result, it makes considerably shorter the receiver acquisition time, especially in severe conditions (weak signal, high dynamics, etc.). We estimate the gain due to proposed algorithm for different modes of signal acquisition. Also test results for cold and hot start are presented.
Published in:	Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998) September 15 - 18, 1998 Nashville, TN
Pages:	307 - 315
Cite this article:	Lyusin, Sergey V., Khazanov, Ilia G., Likhovid, Sergey V., "Fast Acquisition by Matched Filter Technique for GPS/GLONASS Receivers," Proceedings of the 11th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1998), Nashville, TN, September 1998, pp. 307-315.
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