Spoofing Detection by a Reduced Acquisition Process

Pau Closas, Javier Arribas, and Carles Fernández-Prades

Peer Reviewed

Abstract:	Spoofing is a major threat of GNSS-based positioning. Early detection of spoofing signals is paramount in counteracting its malicious effects. In this article, a pre-correlation spoofing detection method is presented based on the solid theory of hypothesis testing. The method assumes that the legitimate signal is being tracked, and thus its synchronization parameters are known, when the spoofing signal appears. Two versions of the detector are presented, one assuming that both signals are uncorrelated and another, more general, without assumptions. The former is computationally lighter, although shows reduced detection performance than the latter when the relative time-delays of the legitimate and the counterfeit signals approach. Computer simulations are used to validate the proposed methodology.
Published in:	Proceedings of the 2016 International Technical Meeting of The Institute of Navigation January 25 - 28, 2016 Hyatt Regency Monterey Monterey, California
Pages:	726 - 731
Cite this article:	Closas, Pau, Arribas, Javier, Fernández-Prades, Carles, "Spoofing Detection by a Reduced Acquisition Process," Proceedings of the 2016 International Technical Meeting of The Institute of Navigation, Monterey, California, January 2016, pp. 726-731. https://doi.org/10.33012/2016.13455
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