Use of APNT to Protect GNSS-Based RNP Services from International and Unintentional RF Interference

Okuary Osechas, Santiago Perea, Boubeker Belabbas, Michael Meurer

Peer Reviewed

Abstract:	We present a method to detect intentional ranging errors on GNSS measurements. Intentional ranging errors can be introduced by targeted radio interference, or spoofing, and are considered a significant threat to aviation safety. The proposed method assumes a functioning APNT capability, able to provide RNP 0.3 or equivalent services independently of GNSS. We present two variants of the method, one in snapshot processing and one in batch processing, where the APNT capability is assumed to include inertial hybridization. The method, after inertial integration, is capable of detecting range errors in the order of 300 m.
Published in:	Proceedings of the 2017 International Technical Meeting of The Institute of Navigation January 30 - 2, 2017 Hyatt Regency Monterey Monterey, California
Pages:	681 - 692
Cite this article:	Osechas, Okuary, Perea, Santiago, Belabbas, Boubeker, Meurer, Michael, "Use of APNT to Protect GNSS-Based RNP Services from International and Unintentional RF Interference," Proceedings of the 2017 International Technical Meeting of The Institute of Navigation, Monterey, California, January 2017, pp. 681-692. https://doi.org/10.33012/2017.14923
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