惯性信息辅助的星图检测识别技术

doi:10.12305/j.issn.1001-506X.2026.08.25

Abstract

Abstract:

In view of the problem of a large number of false star targets in star tracker images caused by strong space radiation, strong interference from solar and earth-atmosphere stray light, and particles in the atmosphere or a large amount of engine spray being illuminated by the sun, conventional star pattern detection and recognition technologies are difficult to identify real star targets, a star pattern detection and recognition technology based on inertial information assistance is proposed. Firstly, inertial assistance information is used to predict the position of stars on the target surface of the star tracker, and the navigation stars are divided into multiple layers and sorted based on the brightness and the predicted position of the navigation stars. Then, partial windows are sequentially opened to collect suspected stars. Finally, angle distance and triangle polarity matching are used for recognition. Experiments show that even when the number of false star targets is tens or even hundreds of times higher than that of real star targets, the real star targets can still be detected and recognized. Under the condition of up to 4000 false star targets, the success rate of star map recognition is over 98%, and the maximum recognition time does not exceed 1 s. This technology can effectively solve the problem of star pattern detection and recognition under the condition of massive false stars.

Key words: star tracker, inertial assistance, star pattern detection, star pattern recognition, false star target

CLC Number:

V 249.32+3

Qiancheng ZHANG, Sheng ZHONG, Xiancheng LI, Zhong LI. Inertial information-assisted star pattern detection and recognition technology[J]. Systems Engineering and Electronics, 2026, 48(8): 2802-2808.

Figures/Tables 8

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References 36

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星数N	概率
5	100
7	99.86
10	98.04
12	93.31

序号	动态/（°/s）	假目标数	全图检测目标数	开窗检测目标数	开窗检测比例/%	平均识别星数	识别成功率/%	平均识别时间/ms	最大识别时间/ms
1	1	0	42	20.6	59	10.3	99.85	3.04	17
2	1	1000	685	163	24	8.3	99.38	7.98	132
3	2	0	28.3	16.8	63	10.7	99.88	2.89	5
4	2	500	377	95.3	25	9.32	99.60	5	29
5	0	1000	616	156.1	25	9.43	99.53	7.93	127
6	0	2000	1176.7	274	23	8.51	99.52	15.84	732
7	0	4000	2320	802	35	6.4	98.97	257	969
8	0	约1470	1500	约200	约13.3	8.31	99.99	30	37
9	0	约1470	1500	约700	约47	8.89	99.95	54.7	112

Inertial information-assisted star pattern detection and recognition technology

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