空间非合作目标质量特性在轨辨识

On-Orbit Identification of Mass Properties of Non-Cooperative Space Target

提出基于系统动力学方程的空间非合作目标质量特性辨识算法。利用递推最小二乘法辨识空间机器人抓捕非合作目标后系统整体的质量特性,进而根据多体动力学的建模方法,通过几何关系解算得到非合作目标与末端作用器联合体的质量特性参数。仿真分析验证了该辨识算法的有效性。

Based on the system dynamics equation, a system identification algorithm for mass properties of non-cooperative space target is proposed. By using the recursive least squares method, the total mass proper- ties are identified after a non-cooperative target is captured by the space root. Furthermore, according to the modeling method of multi-body dynamics and the geometrics relationship, the mass properties parameters of the whole non-cooperative target and end effector are obtained. The simulation results show the validity of the identification algorithm.