Large Azimuth INS Error Models for In-Motion Alignment

Robert M. Rogers

Abstract:	A unified development of two large azimuth INS error model forms is demonstrated using the general position error matrix equation from Ref. [6]. The first error model is based on the sine and cosine of the wander angle error, & , and is developed in this paper. sin( ) [cos( ) &1 ] The second error model is based on an error of the trigonometric sine and cosine function of wander angle, & , and was developed earlier in Ref. [6]. ä sin( ) ä cos( ) Comparisons of the two models™ results, show that the second model is more robust for in-motion alignment.
Published in:	Proceedings of the 2001 National Technical Meeting of The Institute of Navigation January 22 - 24, 2001 Westin Long Beach Hotel Long Beach, CA
Pages:	172 - 184
Cite this article:	Rogers, Robert M., "Large Azimuth INS Error Models for In-Motion Alignment," Proceedings of the 2001 National Technical Meeting of The Institute of Navigation, Long Beach, CA, January 2001, pp. 172-184.
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