Spoofing interference suppression using space-time process for GNSS receiver

Spoofing interference suppression technique for GNSS receiver was deeply discussed. Space-time process and MMSE criterion were applied to anti-spoofing. The combination of PD(Partial Dispreading) and MIRR (Multistage Iterative Rank-reduced) method was proposed to simplify the processing. The proposed method can suppress spoofing interference and significantly reduce the complexity of space-time process. Meanwhile, it also can overcome the effects of Doppler shift and improve the steady-state and transient performance of the filter. Numerical simulation demonstrates that the proposed method is effect and efficient.