Stellar Positioning System (Part II): Improving Accuracy During Implementation

Drew P. Woodbury, Julie J. Parish, Allen S. Parish, Michael Swanzy, Ron Denton, Daniele Mortari, John L. Junkins

Peer Reviewed

Abstract:	This paper discusses the implementation of a Stellar Positioning System as well as techniques for error mitigation in experimentation and data post-processing. The hardware used during the development and testing of the Stellar Positioning System is described. Star-centroiding, star-identification, attitude estimation, and the local gravity vector were used by the Stellar Positioning System to determine latitude and longitude. Image processing, attitude filtering, and focal length estimation are presented as techniques to further improve the capabilities of the system. The resulting prototype was tested in three different locations and the results demonstrate accuracy of the Stellar Positioning System to be within 50 meters for short time intervals.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 57, Number 1
Pages:	13 - 24
Cite this article:	Woodbury, Drew P., Parish, Julie J., Parish, Allen S., Swanzy, Michael, Denton, Ron, Mortari, Daniele, Junkins, John L., "Stellar Positioning System (Part II): Improving Accuracy During Implementation", NAVIGATION: Journal of The Institute of Navigation, Vol. 57, No. 1, Spring 2010, pp. 13-24.
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