Real-Time Jamming Detection and Position Estimation via Software-Defined Radio (SDR)

Global Navigation Satellite System (GNSS) is widely used in position, navigation and time in applications such as exploration, military, aviation, navigation, and time identification. However, the GNSS signals may be unavailable due to the jammers which disrupt or mislead the positioning. Current jamming detection methods do not estimate the distances from jammers to users nor store spectrum images for later retrieval. Therefore, in this paper, the real-time jamming detection is proposed by using the signal powers from Software Defined Radio (SDR). The proposed jamming detection not only detects jamming occurrences, but also estimate the position of jammers via Friis equation.