A Method of GPS Spoofing Detection and Mitigation

摘要

An increasing number of wireless applications rely on GPS signals for localization, navigation, and time synchronization. However, civilian GPS signals are known to be susceptible to interference. Under these environments, GPS signal interference can be occurring in these days. In general, GPS signal interference has been divided GPS jamming and spoofing. In this paper, we introduce the type of spoofing signal and the method of spoofing detection and spoofing mitigation. The spoofing has been category as a three types such as simplistic, intermediate, sophisticated. In this paper, we introduce the detect parameters of the spoofing signal such as the GNSS signal strength, signal strength changing rate, and etc. As a mitigation scheme of spoofing signal, we consider the elimination of spoofing channel through the signal processing and counterbalance of spoofing signal through the RF phase control. This paper present the method of spoofing detection and mitigation and then show the simulation result for proposed spoofing scheme.