非线性系统运动跟踪的变结构控制

本研究了非线性系统对指定运动的输出跟踪问题。首先利用微分几何方法对给定系统进行反馈线性化处理，然后设计滑模变结构控制，以保证系统存在稳定的滑动模态，实现对给定运动的输出跟踪，最后将本方法应用于空间飞行器的姿态跟踪控制问题，仿真结果证实了方法的有效性。

Variable Structure Control of Nonlinear Sytems to the Problem of Motion Tracking

In this paper, the problem of output tracking to given motions of nonlinear systems is studied. First, the feedback Linearization problem is solved to the given system by the differential geometry method . Then, the variable structure control with sliding modes is designed to guarantee the existence of stable sliding modes, which the output tracking to a giver motion is achieved. Finally, the method is applied to the problem of attitude tracking control of spacecrafts. The simulation results demonstrate the effectiveness of the method.