Adaptive Data/Pilot Carrier Phase Tracking for Modernized GNSS Signals

Kannan Muthuraman, Daniele Borio, Richard Klukas and Gerard Lachapelle

Abstract:	Joint data/pilot tracking for modernized GNSS signals is often overlooked as it risks compromising the advantages of utilizing the pilot channel alone. In this paper, a novel joint data/pilot carrier phase tracking method with an adaptive noise bandwidth algorithm is proposed. A complete description of its design in the digital domain is provided and advantages as compared to a similar design in the analog domain are also highlighted. Detailed numerical simulations have been used to validate the proposed algorithm. Live GPS-L2C signals are used to further analyse the performance, in terms of tracking threshold, of the proposed joint data/pilot tracking method. Results indicate no significant performance loss (approximately 1 dB) when using the proposed joint data/pilot tracking. On the contrary, joint data/pilot tracking has been shown to be more effective under weak signal and dynamic conditions.
Published in:	Proceedings of the 2010 International Technical Meeting of The Institute of Navigation January 25 - 27, 2010 Catamaran Resort Hotel San Diego, CA
Pages:	736 - 749
Cite this article:	Muthuraman, Kannan, Borio, Daniele, Klukas, Richard, Lachapelle, Gerard, "Adaptive Data/Pilot Carrier Phase Tracking for Modernized GNSS Signals," Proceedings of the 2010 International Technical Meeting of The Institute of Navigation, San Diego, CA, January 2010, pp. 736-749.
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