Abstract

GNSS is now affecting in various aspects of human life, while it is susceptible to interference including jamming and spoofing, which will make itself be caught in serious risk. Therefore, reliable safeguards are urgently necessary to ensure the safety of GNSS applications. Array signals received by different array sensors contain the spatial characteristics of GNSS signals from different directions, which offer possible approaches to spoofing mitigation based on the general assumption that all spoofing pseudorandom noises are from the same direction. Given this, a novel array signal processing method is proposed in this paper, which can adaptively suppress jamming and spoofing and enhance the useful signals simultaneously. This proposed method can be compatible with the traditional GPS receiver without the need of adjusting the GPS receiver hardware. The effectiveness of this proposed method is verified by simulation results.

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