Abstract
In recent years, with the wide application of Global Navigation Satellite System (GNSS), the security problem of GNSS has attracted wide attention. Spoofing interference will become an important threat to the security of satellite navigation information because of its concealment. In this paper, we propose a new double antenna structure spoofing interference detection method according to the spatial characteristics of GNSS signal. The test statistics are constructed by the generalized likelihood ratio (GLR) theory, and the GNSS spoofing interference detection methods under the same direction spoofing interference and different direction spoofing interference are obtained respectively. The feasibility of this method is verified by simulation.
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