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A voting-based star identification algorithm utilizing local and global distribution

delete2018-03-01
delete11
PRE
AI
Q
Qiaoyun Fan
X
Xuyang Zhong
J
Junhua Sun *
DOI:10.1016/j.actaastro.2017.12.003delete
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摘要

摘要

En 中文
A novel star identification algorithm based on voting scheme is presented in this paper. In the proposed algorithm, the global distribution and local distribution of sensor stars are fully utilized, and the stratified voting scheme is adopted to obtain the candidates for sensor stars. The database optimization is employed to reduce its memory requirement and improve the robustness of the proposed algorithm. The simulation shows that the proposed algorithm exhibits 99.81% identification rate with 2-pixel standard deviations of positional noises and 0.322-Mv magnitude noises. Compared with two similar algorithms, the proposed algorithm is more robust towards noise, and the average identification time and required memory is less. Furthermore, the real sky test shows that the proposed algorithm performs well on the real star images.
Keyword:
Star sensor
Star identification
Global distribution
Local distribution
Stratified voting
Database optimization

期刊

Acta Astronautica 封面图
Acta Astronautica
IF:
3.4
论文数:
1.1W
被引数:
2.1W

机构

B
Beihang University
学者数:
5.2W
论文数: 4.1W
被引数: 37
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