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Chin. Opt. Lett.
 Home  List of Issues    Issue 08 , Vol. 15 , 2017    10.3788/COL201715.081201


Optimization method for star tracker orientation in the sun-pointing mode
Geng Wang1;2, Fei Xing1;2, Minsong Wei3, Ting Sun1;2, and Zheng You1;2
1 Department of Precision Instrument, [Tsinghua University], Beijing 1 00084, China
2 State Key Laboratory of Precision Measurement Technology and Instruments, [Tsinghua University], Beijing 100084, China
3 Department of Mechanical Engineering, [University of California], Berkeley, CA 94720, USA

Chin. Opt. Lett., 2017, 15(08): pp.081201

DOI:10.3788/COL201715.081201
Topic:Instrumentation, measurement and metrology
Keywords(OCIS Code): 120.4640  120.6085  280.4788  290.2648  

Abstract
The star tracker, an optical attitude sensor with high accuracy, is widely used in satellites for attitude determination and control. However, it is susceptible to the sunlight and the earthlight for application on satellites in the sun-synchronous orbit. Therefore, the suppression of the sunlight and the earthlight is important for the star tracker. In this Letter, a vector model is proposed to describe the relationship among the Sun, the Earth, and the satellite body, and, based on the equations of the boundary curves, the vector areas free from the sunlight and the earthlight in the body coordinate system of the satellite are derived. Meanwhile, the installation orientation of the star tracker and the corresponding exclusion angle of the earthlight are optimized. The simulation results indicate that the optimization method for the installation orientation and the exclusion angle of the star tracker is accurate and effective.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2017/2/27
Accepted:2017/4/28
Posted online:2017/5/26

Get Citation: Geng Wang, Fei Xing, Minsong Wei, Ting Sun, and Zheng You, "Optimization method for star tracker orientation in the sun-pointing mode," Chin. Opt. Lett. 15(08), 081201(2017)

Note: This work was supported by the State Key Laboratory of Precision Instrument Measurement, Tsinghua University under the financial support of the National Natural Science Foundation of China (NSFC) (Nos. 61377012, 51522505, 61605099, and 61505094).



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