Multi-user Cooperation Based GNSS Spoofing Detection Method

Yichen Yang, Hong Li, and Mingquan Lu

Abstract: GNSS signals are vulnerable to jamming and spoofing attacks. Compared with jamming, spoofing may mislead a GNSS receiver to a preplanned wrong positioning and time result without noticing, which would result in dangerous consequences and serious losses. In the paper, a GNSS replay spoofing detection method based on multi-user cooperation is proposed. The effects of replay delays on receivers caused by replay spoofers are discussed at first. The analyses show that the receivers’ position differences between the cheated positions and the correct ones are proportional to the replay delays. In fact, the spoofing delays added in spoofers and the relative positions between satellites, spoofers and receivers are various, which make each receiver suffers different replay delay. So replay spoofing for different receivers will have different deception effects generally, and the distances between receivers will change unusually. By comparing the distances of position results and the real ones known in advance with multi-user collaborative approaches, contradictions can be detected and warnings of spoofing attack would be raised. The performance of the proposed method is analyzed and evaluated, which demonstrates the validity of the method.
Published in: Proceedings of the 2016 International Technical Meeting of The Institute of Navigation
January 25 - 28, 2016
Hyatt Regency Monterey
Monterey, California
Pages: 160 - 168
Cite this article: Yang, Yichen, Li, Hong, Lu, Mingquan, "Multi-user Cooperation Based GNSS Spoofing Detection Method," Proceedings of the 2016 International Technical Meeting of The Institute of Navigation, Monterey, California, January 2016, pp. 160-168.
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