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Proceedings Paper

CCD non-uniformity effects on position accuracy of star sensor
Author(s): Jia-li Liao; Hai-bo Liu; Hui Jia; Jian-kun Yang; Ji-chun Tan
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Paper Abstract

The photoelectric response and the character of the CCD non-uniformity are analyzed in this paper. Based on the analysis, the model of CCD non-uniformity effects on position accuracy of the star spot is established. A correction method based on the least square estimation is used to correct the CCD photoelectric response non-uniformity. The effect of CCD non-uniformity on position accuracy of star sensor before and after the compensation is simulated. The results show that the position accuracy of the star sensor has been improved obviously after compensation. In addition, the differences of the photo response non-uniformity and the mean photo response coefficient do not influence the results of the compensation according the analysis.

Paper Details

Date Published: 13 October 2010
PDF: 7 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 765659 (13 October 2010); doi: 10.1117/12.865553
Show Author Affiliations
Jia-li Liao, National Univ. of Defense Technology (China)
Hai-bo Liu, National Univ. of Defense Technology (China)
Hui Jia, National Univ. of Defense Technology (China)
Jian-kun Yang, National Univ. of Defense Technology (China)
National Lab. of Space Intelligent Control (China)
Ji-chun Tan, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

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