Laboratory calibration of star tracker with brightness independent star identification strategy

Fei Xing; Ying Dong; You Zheng

doi:10.1117/1.2213996

1 June 2006 Laboratory calibration of star tracker with brightness independent star identification strategy

Fei Xing, Ying Dong, You Zheng

Author Affiliations +

Optical Engineering, Vol. 45, Issue 6, 063604 (June 2006). https://doi.org/10.1117/1.2213996

Abstract

Star trackers based on charge-coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) sensors, use a brightness independent star identification strategy that requires highly accurate measurements of star spot position. Therefore, precise calibration of the measurement model is crucial. Generally, ground-based real night sky observation is a specific and costly approach. In this work, an optical laboratory method for star tracker calibration is proposed. This method is based on ordinary instruments, laser autocollimation adjustment, and image processing techniques. The calibration issues of the star tracker with a brightness independent star identification strategy are analyzed. A new laboratory calibration method is introduced, and its results on an active pixel sensor (APS) star tracker are discussed. This method proves to be practical and adequate in the development of a star tracker with wide field of view.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Fei Xing, Ying Dong, and You Zheng "Laboratory calibration of star tracker with brightness independent star identification strategy," Optical Engineering 45(6), 063604 (1 June 2006). https://doi.org/10.1117/1.2213996

Published: 1 June 2006

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