Anti-Jamming techniques for aviation GNSS-based navigation systems: Survey

Aviation is now heavily dependent on GNSS signals to get the PNT (Position, Navigation, Timing) elements with a high degree of accuracy, reliability and continuity. The International Civil Aviation Organization (ICAO) with the support of regional organizations like the FAA (Federal Aviation Authority) and Eurocontrol are now moving to concretize the recommendations of GANP (Global Air Navigation Plan) which make from GNSS the key technology of CNS/ATM concept (Communication, Navigation, Surveillance/Air Traffic Management). So, it is obvious that the security and the integrity of GNSS signals must be a concern of all actors in military and civil aviation. In this paper, we will present a survey of the anti-jamming techniques for airborne GNSS-based navigation systems and some approaches to detect, mitigate the jamming and provide a secure GNSS-based system.