Research on Spoofing Detection based on C/N0 measurements for GNSS array receivers
作者单位：College of Electronic Science and EngineeringNational University of Defense Technology
会议名称：《第十四届中国卫星导航年会》
会议日期：2023年
学科分类：08[工学] 080401[工学-精密仪器及机械] 081105[工学-导航、制导与控制] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程]
摘 要：In recent years,Global Navigation Satellite System(GNSS) spoofing detection techniques have attracted wide *** with jamming,spoofing which always hides in the shadows has stronger concealment leading to more threat to the security of ***-to-noise ratio(C/N) is one of the important measurements of *** may cause abnormal changes in the C/N,but the variations of the C/N are not obvious in most cases,and it is liable to cause false alarm in the presence of *** on antenna arrays,this paper theoretically derives the effective C/N model of array receivers as spoofing successfully or unsuccessfully captures tracking *** we demonstrate that the C/N single difference(CSD) between satellites can be the testing statistic for spoofing *** results show that the proposed method can detect the abnormal C/N features of counterfeit signals after anti-jamming for the antenna *** method does not require modifications to the hardware configuration of conventional receivers and can provide an effective defense for array receiver in the combination of jamming and spoofing attacks.