Autonomous Spoofing Detection and Mitigation in a GNSS Receiver with an Adaptive Antenna Array

Abstract

The paper reports results of the study aimed at improvement of a technique for the autonomous detection of spoofing signals using the direction-of-arrival (DOA) measurements. The estimated DOAs are used to assess the direction to the spoofing source and mitigate the interference by placing the spatial null in the antenna reception pattern. The performance of the proposed technique is investigated for both static and dynamic user cases by post-processing the recorded receiver observations or raw IF samples.