NGA Gravity Support for Inertial Navigation

Peter Damian Kopcha

Abstract:	Recent advances in inertial measuring technology have precipitated a need to better understand the high- frequency gravity effects on an inertial navigation system (INS). If left uncompensated, the effects of gravity, which are undetectable to an accelerometer, could cause significant INS velocity and position errors. The National Geospatial-Intelligence Agency (NGA) provides customized gravity products for U.S. military inertial systems. The gravity production process, INS error modeling, and an illustrative example of the effects of gravity on an INS will be presented.
Published in:	Proceedings of the 60th Annual Meeting of The Institute of Navigation (2004) June 7 - 9, 2004 Dayton Marriott Hotel Dayton, OH
Pages:	497 - 504
Cite this article:	Kopcha, Peter Damian, "NGA Gravity Support for Inertial Navigation," Proceedings of the 60th Annual Meeting of The Institute of Navigation (2004), Dayton, OH, June 2004, pp. 497-504.
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