Seminars

This dissertation develops the theory and provides experimental verification of GNSS interference detection and localization algorithms with data from terrestrial- and space-based receivers. The first study offers an experimental demonstration of single-satellite geolocation of broadcast GNSS spoofers and an analysis of various error sources. The second study explores dual-satellite geolocation of GNSS interference from Low Earth Orbit (LEO) and presents an analysis of interference signals captured in the GNSS frequency bands by two time-synchronized LEO receivers over the Eastern Mediterranean, with the emitters being geolocated. The third study investigates a transient space-based GNSS interference source that has caused continental-wide GNSS interference and presents detection and estimation algorithms to identify the source. Together, these contributions strengthen GNSS security by providing the theory and experimental verification of GNSS interference detection and geolocation algorithms across several platforms.