摘要
非合作目标的姿态角速度、角加速度未知,给在轨服务航天器跟踪非合作目标姿态的控制器设计带来挑战.为解决这一问题,设计了一种非线性观测器,该观测器能够估计出非合作目标状态,然后构造了基于非线性观测器的姿态跟踪控制器,并证明了闭环系统的一致渐近稳定性.仿真结果表明,设计的方法不仅能够实现非合作目标的状态估计,而且实现了对非合作目标姿态的跟踪.
With the unknown angular velocity and angular acceleration of the non-cooperative target, it is challenging to design the attitude control of on-orbit autonomous servicing （OOAS） for non-cooperative target tracking. The nonlinear observer is designed to obtain the states of the non-cooperative target. Based on the nonlinear observer, the attitude tracking controller is designed. Moreover, the stability of the closed-loop system is proved. The methods are verified by using computer simulations.
出处
《空间控制技术与应用》
2013年第5期19-23,28,共6页
Aerospace Control and Application
基金
国家重点实验室基金资助项目(0000080700800001003000069)
关键词
非合作目标
姿态跟踪控制
非线性观测器
闭环稳定性
non-cooperative target
attitude tracking control
nonlinear observer
closed-loop stability
