Spoofing Mitigation, Robust Collision Avoidance, and Opportunistic Receiver Localisation Using a New Signal Processing Scheme for ADS-B or AIS

R. Faragher, P.F. MacDoran, M.B. Mathews

Abstract:	A signal processing scheme based on phase interferometry is developed here that provides anti-spoof capabilities for ADS-B or AIS using a compact, dual-antenna software-denied radio. The expected performance using existing radio technologies and two short baselines is demonstrated for ADS-B. The abilities of the proposed method include spoof detection (ADS-B, AIS and GNSS), collision avoidance in the presence of spoofers, and self-localisation in the absence of GPS. The system can provide bearing estimates of other aircraft in the vicinity broadcasting legitimate or spoofed ADS-B with accuracies of a degree with an antenna baseline of one metre, and self-positioning accuracies of approximately 100 metres for the same baseline. The applicability of the technique to AIS in the maritime domain is also discussed.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	858 - 868
Cite this article:	Faragher, R., MacDoran, P.F., Mathews, M.B., "Spoofing Mitigation, Robust Collision Avoidance, and Opportunistic Receiver Localisation Using a New Signal Processing Scheme for ADS-B or AIS," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 858-868.
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