Stellar Positioning System (Part II): Improving Accuracy During Implementation Conference Paper uri icon

abstract

  • This paper will discuss the implementation of a Stellar Positioning System (SPS) as well as techniques for error mitigation in experimentation and data post-processing. The hardware used during the development and testing of the SPS will be described. Star-centroiding, star-identification, attitude estimation, and the local gravity vector were used by the SPS to determine latitude and longitude. Image filtering and attitude filtering are presented as techniques to further improve the capabilities of the system. Three focal length estimation methods are investigated and compared. The resulting prototype was tested in three different locations and the results demonstrate accuracy of the SPS to be within 50 meters over short time intervals. Copyright © 2008 by the American Institute of Aeronautics and Astronautics, Inc.

author list (cited authors)

  • WOODBURY, D. P., PARISH, J. J., PARISH, A. S., SWANZY, M., DENTON, R., MORTARI, D., & JUNKINS, J. L.

publication date

  • January 1, 2010 11:11 AM