激光灯塔合作靶标传感器布局优化与位姿测量精度分析

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关键词：相对位姿测量；激光灯塔；误差传播模型；构型优化中图分类号：TH74 文献标识码：Adoi：10.37188/OPE.20253314.2191 CSTR：32169.14.OPE.20253314.2191

Precision analysis and visualization of posture measurement for cooperative spacecraft based on laser lighthouse

YUANHaoran，CHENHanyu，WUJunfeng，KANGGuohua （College ofAeronautics，Nanjing University ofAeronautics and Astronautics，Nanjing 211O6， China） * Corresponding author， E-mail： wujunfeng@nuaa. edu. cn

Abstract： Aiming at the problem that the measurement accuracy of cooperative targets in spacecraft forma tion missions varies greatly under diffrent sensor layouts，we visualized the accuracy and proposed a sen sor optimization criterion to guide the installation layout design of photoelectric sensors in complex environ ments and ensure good working performance of laser lighthouse. In this paper，Angle measurement error and sensor installation error were selected for analysis and modeling，and the error propagation model of laser lighthouse system was more strictly established. An AP（angle-precision） mapping method was proposed to evaluate the sensor instalation configuration. The experimental results show that the RMS of the measurement eror of the laser lighthouse system is basically consistent with the calculated value，and the calculated relative error is within 5% ，which verifies the correctness of the error propagation analysis model. In addition，in terms of sensor layout optimization，using the proposed AP spherical mapping to visualize the measurement accuracy，it is found that compared with the coplanar configuration，the pose measurement accuracy of the laser lighthouse for the non-coplanar sensor installation configuration is more evenly distributed with the observation Angle，and the measurement error divergence is not easy. Key words ： pose measurement； lighthouse；error propagation model； configuration optimization

1引言

二十世纪末，由于微小卫星编队飞行模式的提出，航天器编队技术逐渐发展起来，并成为航天技术的研究热点和发展方向[1]。（剩余17949字）