A Real-Time GPS-Challenged Navigation and Image Geo-Registration System for Airborne Platforms

Steve Berardi, Han Park, Andrew Brown, Clark Taylor, J.C. Ha

Abstract:	In this paper, we present a real-time system for airborne platforms designed to provide accurate navigation and image geo-registration information. The primary contribution of this work is the advancement of state-ofthe-art real-time image processing for both navigation and geo-registration. We also present performance results over periods of extended GPS outages using COTS sensors and hardware. Previous work on this contract has been presented at ION JNC 2014. This paper reports on the progress at the midpoint of phase III of the four phase program, highlighting in-flight performance of the system during periods (up to one hour) of GPS-denied operation. Under simple flight scenarios the team has achieved exceptional GPS-denied navigation (200 meters per hour horizontal drift) and geo-registration performance (1.8 meter average landmark absolute geo-registration error) using a tactical-grade MEMS IMU and 16 megapixel EO camera.
Published in:	Proceedings of the ION 2015 Pacific PNT Meeting April 20 - 23, 2015 Marriott Waikiki Beach Resort & Spa Honolulu, Hawaii
Pages:	687 - 693
Cite this article:	Berardi, Steve, Park, Han, Brown, Andrew, Taylor, Clark, Ha, J.C., "A Real-Time GPS-Challenged Navigation and Image Geo-Registration System for Airborne Platforms," Proceedings of the ION 2015 Pacific PNT Meeting, Honolulu, Hawaii, April 2015, pp. 687-693.
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