Robust GNSS Spoofing Detection Based on Prior Information of Satellite Trajectories

GNSS spoofing attacks aim to control the tracking loop of a target receiver and may cause significant damage to GNSS users and corresponding properties. In this paper, we propose a novel spoofing detection technique for the global navigation satellite system (GNSS), which leverages trajectory information of satellites and array antenna-based direction of arrival (DoA) estimation. In particular, in the proposed GNSS spoofing detection technique, the target receiver compares satellite trajectory information with the array antenna-based DoA estimation result to extract the feature of the GNSS spoofing attack and determine whether it is currently under attack. Simulation results show that the proposed technique has robust spoofing detection performance compared with conventional techniques, even under multiple spoofers' attacks.