A Research of Multi-antenna Spoofing Detection Technology

This paper presented a method that supports multi-element signal direction finding through power augmentation after the spoofing jamming signals are despread with the local codes, which is compared with the satellite position acquired by ephemeris calculating. The conventional spoofing–jamming detection methods are only effective to specific spoofing jamming. This algorithm utilizes the priori knowledge that the satellite navigation receiving system already has detected a number of spoofing jamming with the high-resolution direction-finding method. The simulation results show that this algorithm has good detection performance on both active spoofing and passive spoofing.