GNSS deception jamming detection method

The invention relates to a GNSS deception jamming detection method. Doppler frequency shift data of all satellites are obtained according to GNSS signals; Doppler frequency shift data in a window M inthe two satellites are acquired, and linear fitting is performed on the Doppler frequency shift data in the window M to obtain fitting data; Doppler frequency shift differences of the two satellitesare respectively obtained according to the Doppler frequency shift data and the fitting data; whether a deception signal exists or not is judged according to the Doppler frequency shift differences ofthe two satellites; and PRN identifications of the two satellites are outputted if so. The scheme is easy to implement, the jamming signals can be effectively detected, compared with a multi-antennadeception jamming detection method, the complexity is relatively low, the requirement for a receiver is not high, the equipment cost of the receiver is greatly reduced, and the application scene is wider. 本发明涉及的一种GNSS欺骗干扰检测方法根据G