Research on Satellite Time Spoofing Method Based on Signal Processing

Processing satellite signals can deceive receiver time. For GPS time receivers, this paper proposes two time spoofing methods, one is based on delay control, and the other is based on clock frequency control. By analyzing the principle of satellite timing, the receiver's time-related parameters and time spoofing principle are deduced and the delay control model and the clock control model are constructed respectively. Finally, the effectiveness of the two control methods is verified through design simulation experiments, of which results present that the time-delay control method can linearly skew the receiver time and the clock control method makes the receiver time shift at a certain speed.