摘要
针对面向在轨服务的非合作空间目标测量感知问题,提出了一种基于双目视觉的相对导航与惯性参数辨识方法。利用目标表面的特征点建立几何坐标系,并分别设计了姿态测量和相对导航滤波器,实现了目标姿态、角速度、轨道,质心位置与惯量比的高精度估计。在此基础上,通过黏附卫星与非合作目标形成组合体,利用相对导航算法获得的质心位置和惯量比在黏附前后的变化,实现了目标质量和转动惯量的辨识。数值仿真试验证明了算法的有效性。
A new method to realize the relative navigation and identification of inertia parameters based on stereo vision is proposed to address the measurement and perception of a non-cooperative spacecraft in an on-orbit-serving mission.The features points recognized by stereo vision are used to define a geometric coordinate system,based on which the filters for attitude measurement and relative navigation are designed to estimate the attitude,angular velocity,ratio of inertia,orbit and center of mass of the target.The mass and moment of inertia are then identified based on the difference of the ratio of inertia and position of center of mass of the target estimated through the relative navigation method before and after the combination with an adhesive satellite.The validity of the proposed method is verified through numerical simulation.
作者
胡启阳
王大轶
HU Qi-yang;WANG Da-yi(Beijing Institute of Control Engineering,Beijing 100190,China;Beijing Institute of Spacecraft System Engineering,Beijing 100094,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2020年第11期1410-1417,共8页
Journal of Astronautics
基金
国家杰出青年科学基金项目(61525301)
国家自然科学基金项目(61690215,61640304,61573060,61203093)。
关键词
非合作空间目标
双目视觉
姿态测量
相对导航
参数辨识
Non-cooperative spacecraft
Stereo vision
Attitude measurement
Relative navigation
Parameter identification
