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Analytical Model for the Influence of Random Errors in Star Points on the Accuracy of Star Sensors
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Hongyuan WANG1, Shaochong WU1, Xunjiang ZHENG2, 3, Shuodong SUN2, 3, Zhilong YE2, 3, Xuwei ZHANG2, 3, Shuai YAO1, Zhen YANG4
Flight Control & Detection | 2025, 8(5) : 61 - 69
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Flight Control & Detection | 2025, 8(5): 61-69
• Photoelectric Detection and Guidance Technology •
Analytical Model for the Influence of Random Errors in Star Points on the Accuracy of Star Sensors
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Hongyuan WANG1, Shaochong WU1, Xunjiang ZHENG2, 3, Shuodong SUN2, 3, Zhilong YE2, 3, Xuwei ZHANG2, 3, Shuai YAO1, Zhen YANG4
Affiliations
  • 1Research Center for Space Optical Engineering, Harbin Institute of Technology, Harbin 150001
  • 2Shanghai Aerospace Control Technology Institute, Shanghai 201109
  • 3Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai 201109
  • 4National Key Laboratory of Laser Space Information, Harbin Institute of Technology, Harbin 150080
doi: 10.20249/j.cnki.2096-5974.2025.05.007
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Star sensor is a high-precision attitude measurement device,and its attitude measurement accuracy plays a decisive role in navigation. In order to analyze the impact of star points'random errors on the accuracy of star sensors,based on the QUEST algorithm,an analytical model for the influence of star points'random errors on the star sensor accuracy is proposed by solving the Wahba problem. The relationship between the random centroid error of star points and the accuracy of star sensors is analyzed using this model. The simulation results show that the uniformity and average distance of star points relative to the detector origin affect the attitude accuracy of star sensors, rather than the field of view. The analytical model reveals the relationship between the star points' random error,the star points position and attitude accuracy. The three-axis attitude solution accuracy of the proposed model is (98.1%,93.3%,96.1%),while that of the empirical model is (58.8%,61.5%,26.9%). The accuracy analysis of star sensors has important guiding significance for the design,calibration,and astronomical navigation of star sensor optical systems.

star point position  /  random error  /  attitude accuracy  /  star sensor  /  QUEST algorithm
Hongyuan WANG, Shaochong WU, Xunjiang ZHENG, Shuodong SUN, Zhilong YE, Xuwei ZHANG, Shuai YAO, Zhen YANG. Analytical Model for the Influence of Random Errors in Star Points on the Accuracy of Star Sensors[J]. Flight Control & Detection, 2025 , 8 (5) : 61 -69 . DOI: 10.20249/j.cnki.2096-5974.2025.05.007
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doi: 10.20249/j.cnki.2096-5974.2025.05.007
  • Online Date：2026-04-23
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Affiliations
    1Research Center for Space Optical Engineering, Harbin Institute of Technology, Harbin 150001
    2Shanghai Aerospace Control Technology Institute, Shanghai 201109
    3Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai 201109
    4National Key Laboratory of Laser Space Information, Harbin Institute of Technology, Harbin 150080
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https://castjournals.cast.org.cn/joweb/fkytc/EN/10.20249/j.cnki.2096-5974.2025.05.007
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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