GPS signal has a very low receiving power of about -160 dBW, it is very vulnerable to intentional and even unintentional interference signals. GPS jamming signal preclude the possibility of offering precision position based on GPS and operating synchronization system from GPS time. Therefore, lots of studies have been researched for reducing influence of jamming signal and jammer localization. In this paper, we implemented a jammer location system to track position of GPS jammer by using TDOA method and analyzed the performance of it in real-time. For that, the implemented system has been set up in permitted area in Agency for Defense Development, and the experimentation has been done by using live RF jamming signal in real-time. By the results, it has been confirmed that horizontal position error is lower than 50 m.

Keywords: jammer, localization, TDOA