GPS锁相欺骗及Matlab仿真验证

Phase-Locked GPS Spoofing Simulation and Verification on Matlab

GPS欺骗式干扰是通过发射伪GPS信号来顶替目标接收机中已接收到的真实GPS信号,在伪GPS信号中提供虚假导航电文、伪距信息来影响目标接收机的定位解算结果,使其定位错误。主要分析了伪GPS信号如何在接收机的跟踪环路中顶替真实GPS信号,伪信号中的参数如何设置可以实施成功的欺骗干扰,并辅以Matlab仿真验证。

The deception jamming of GPS is realized through launching pseudo GPS signal to replace the real GPS signal received in the target receiver. Through providing false navigation message and false pseudo- range information in the pseudo GPS signal, it can affect the positioning of the target receiver and make it get error position. This paper analyses how to replace real GPS signal in the target receiver tracking loop and how to set the parameters in the pseudo GPS signal for implementing GPS spoofing successfully. Matlab simulation is made for verification.