Moving Receiver PVT Solution Authentication Based on Monitoring the Combination of Clock Bias and Drift

Zhiyuan Chen, Hong Li, Jian Wen, Mingquan Lu

Abstract: Since the widespread existence of interference and spoofing, the authentication of position, velocity, and timing (PVT) solution is necessary for a Global Navigation Satellite System (GNSS) receiver. Single-antenna spoofing attack that transmits all the counterfeit signals by a single antenna is a common one. In this case, all the counterfeit signals would experience a common propagation channel which causes the same fading and delay from the spoofer to a receiver. Inspired by the characteristic of such spoofing attack, we propose a PVT solution authentication method based on monitoring the combination of clock bias and drift for moving receivers in the paper. The basic principle of the method is based on the consistency check of clock bias and drift variations between local clock and GNSS timing solution. It can verify the authenticity of PVT solution using not only the clock bias but also the clock drift variations. This allows the Commercial off-the-shelf (COTS) GNSS receivers to obtain better performance.
Published in: Proceedings of the 2020 International Technical Meeting of The Institute of Navigation
January 21 - 24, 2020
Hyatt Regency Mission Bay
San Diego, California
Pages: 1090 - 1100
Cite this article: Chen, Zhiyuan, Li, Hong, Wen, Jian, Lu, Mingquan, "Moving Receiver PVT Solution Authentication Based on Monitoring the Combination of Clock Bias and Drift," Proceedings of the 2020 International Technical Meeting of The Institute of Navigation, San Diego, California, January 2020, pp. 1090-1100.
https://doi.org/10.33012/2020.17200
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