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Proceedings Paper

Star sensor calibration method based on the SPGD algorithm
Author(s): Liheng Ma; Chunsheng Sun; Xiaohui Zhang; Qingping Hu
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Paper Abstract

Calibration of the intrinsic parameters of a star sensor before and after its launch is essential. The existing techniques have not taken the centroiding error into consideration thoroughly. Meanwhile, the calibration operation is complex. Based on the principle of the SPGD algorithm, a calibration method fully considering the star image centroiding error is proposed in this work. Simulation result indicates that the intrinsic parameters are calibrated out and kept constantly after tens of iterations. The accuracy of principle point of the proposed SPGD based method is 4 times as the IAICM. As for the focus length, the accuracy is improved by 6 times compared to the IAICM. Simultaneously, the calibration operation becomes extremely simple

Paper Details

Date Published: 18 December 2019
PDF: 5 pages
Proc. SPIE 11341, AOPC 2019: Space Optics, Telescopes, and Instrumentation, 1134107 (18 December 2019); doi: 10.1117/12.2539569
Show Author Affiliations
Liheng Ma, Naval Univ. of Engineering (China)
Chunsheng Sun, Naval Univ. of Engineering (China)
Xiaohui Zhang, Naval Univ. of Engineering (China)
Qingping Hu, Naval Univ. of Engineering (China)

Published in SPIE Proceedings Vol. 11341:
AOPC 2019: Space Optics, Telescopes, and Instrumentation
Suijian Xue; Xuejun Zhang; Carl Anthony Nardell; Ziyang Zhang, Editor(s)

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