GNSS Spoofing Discrimination Method Based on Doppler Frequency Double Difference for Multiple Independent Moving Receivers

Zhongxiao Wang, Hong Li, Jian Wen, Mingquan Lu

Peer Reviewed

Abstract:	Spoofing attacks are severe threat to Global navigation satellite system (GNSS). Using the propagation characteristic of spoofing signals, a lot of methods have been put forward to detect and discriminate spoofing. In this paper, we propose a double difference method using Doppler shift measurements of independent receivers, which does not require time synchronization and can be easily integrated on commercial off-the-shelf (COTS) receivers. We derive the theoretical model of Doppler frequency double difference (DFDD) in detail, and analyse the detection performance. Numerical simulations and field experiments are conducted to verify the feasibility of the proposed method.
Published in:	Proceedings of the 2021 International Technical Meeting of The Institute of Navigation January 25 - 28, 2021
Pages:	56 - 68
Cite this article:	Wang, Zhongxiao, Li, Hong, Wen, Jian, Lu, Mingquan, "GNSS Spoofing Discrimination Method Based on Doppler Frequency Double Difference for Multiple Independent Moving Receivers," Proceedings of the 2021 International Technical Meeting of The Institute of Navigation, January 2021, pp. 56-68. https://doi.org/10.33012/2021.17825
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