Exploiting Quasi-periodicity in Receiver Dynamics to Enhance GNSS Carrier Phase Tracking

Srinivas Bhaskar

Peer Reviewed

Abstract:	Student Paper Award Winner. This paper proposes a novel GNSS carrier phase tracking algorithm which employs prediction and feed-forward compensation of receiver platform dynamics. The work exploits the quasi-periodic nature of receiver motion wherein a short-term Fourier transform based algorithm is used to predict and compensate for changes in the Doppler frequency. The variation in the Doppler frequency, and hence the resultant variation carrier phase, in a pedestrian hand-held system is studied as an example. The algorithm is tested with live GPS L1 C/A signals. The performance evaluation of the proposed method is performed based on a phase lock indicator and between-receivers carrier phase difference.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	2563 - 2578
Cite this article:	Bhaskar, Srinivas, "Exploiting Quasi-periodicity in Receiver Dynamics to Enhance GNSS Carrier Phase Tracking," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 2563-2578.
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