飞控与探测2025，Vol.8Issue(5)：61-69,9.DOI:10.20249/j.cnki.2096-5974.2025.05.007
星点随机误差对星敏感器精度影响的解析模型
Analytical Model for the Influence of Random Errors in Star Points on the Accuracy of Star Sensors
摘要
Abstract
Star sensor is a high-precision attitude measurement device,and its attitude measurement accu-racy 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 prob-lem.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 accu-racy 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 signifi-cance for the design,calibration,and astronomical navigation of star sensor optical systems.关键词
星点位置/随机误差/姿态精度/星敏感器/QUEST算法Key words
star point position/random error/attitude accuracy/star sensor/QUEST algorithm引用本文复制引用
汪洪源,武少冲,郑循江,孙朔冬,叶志龙,张徐玮,姚帅,杨振..星点随机误差对星敏感器精度影响的解析模型[J].飞控与探测,2025,8(5):61-69,9.基金项目
科技部国家重点研发计划专项项目(2019YFA0706003) （2019YFA0706003）
中国航天科技集团有限公司第八研究院产学研合作基金资助项目(SAST2023-058) （SAST2023-058）
航空科学基金(2024Z073077006) （2024Z073077006）
