Efficient Weak Signal Tracking for Embedded Software GNSS Receiver

Sung-Hyuck Im and Gyu-In Jee

Abstract:	In this paper, an adaptive frequency tracking algorithm for weak signal tracking is proposed. The proposed frequency tracking algorithm uses a fast minus slow (FMS) discriminator for frequency error estimation. This frequency tracking algorithm shows good frequency estimation performance under weak signal condition and is a computationally efficient for embedded software GNSS receiver. The software GNSS receiver implementing the proposed weak signal tracking algorithms could track GPS signal down to 159dBm signal strength in the signal generator test and real GPS signal under dense urban condition.
Published in:	Proceedings of the 2008 National Technical Meeting of The Institute of Navigation January 28 - 30, 2008 The Catamaran Resort Hotel San Diego, CA
Pages:	792 - 797
Cite this article:	Im, Sung-Hyuck, Jee, Gyu-In, "Efficient Weak Signal Tracking for Embedded Software GNSS Receiver," Proceedings of the 2008 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 2008, pp. 792-797.
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