Implementation and test of GNSS spoofing detection module

As the field of GNSS application is stretched, the stability of GNSS is concerned. GNSS is connected with the social infrastructure and economic problem. GNSS is used in communication system, military weapon, power station, satellite system, and so on. The information of position and time which is provided by GNSS is related with economy and military capabilities. Thus the threat of GNSS attack will increase in the future. For dealing with this request, ETRI is developing GNSS interference detection system. In this paper, we introduce the GNSS interference detection system and specially focus on the spoofing detection module. The algorithm for detecting the spoofing signal is implemented on the GNSS interference detection system. The result of implemented system is verified by the system test. The functions of spoofing detection module are verified by the spoofing environment which is generated by test-bed.