飞行器在轨精度跟踪优化问题,根据在轨服务任务需求,针对非合作翻滚目标航天器的自主接近跟踪问题,首先从采用视线坐标系表示的轨道动力学方程和修正罗德里格斯参数表示的姿态动力学方程出发,建立了航天器六自由度类拉格朗日动力学方程;然后仅利用相对位置和相对姿态反馈信息并针对航天器惯性参数不确定性,采用自适应非线性输出反馈控制和神经网络逼近控制方法设计了姿轨联合控制器,并通过Lyapunov直接法证明了该闭环系统的全局渐进稳定性;最后通过仿真验证了采用的方法能够实现对非合作目标的精确跟踪。 According to the on-orbit service mission requirements, aiming at the autonomous proximity tracking problem of non-cooperative tumbling target spacecraft, firstly, from the orbital dynamics equation using the line of sight coordinate system and the attitude modified by Rodriguez parameter Based on the dynamic equations, the Lagrange kinetic equation of six degrees of freedom spacecraft was established. Then, using only the relative position and relative attitude feedback information and the uncertainties of inertial parameters of the spacecraft, adaptive nonlinear output feedback control and Neural network approximation control method is proposed to design the attitude-rail joint controller, and the global asymptotic stability of the closed-loop system is proved by Lyapunov direct method. Finally, the simulation results show that the proposed method can accurately track non-cooperative targets.