非线性时变系统基于状态观测器的输出跟踪

研究了一类仿射非射线时变系统基于状态观测器的输出反馈跟踪问题。首先，设计出该系统的状态观测器，然后，给出了一种用估计状态实现渐近跟踪期望信号的控制器设计方案，并证明了相应闭环系统的指数稳定性，其中系统的控制器和观测器可以分离独立进行设计。最后，给出了数值仿真研究，结果表明了该方法的有效性。

Output Tracking for a Class of Nonlinear Time-Varying Systems Based on State Observers

Output tracking for a class of affine nonlinear time varying systems based on state observers is considered. Firstly, a kind of observer is presented for the systems. Then, the observer based controllers which are used to track the desired signals are designed, and the exponential stability for the closed loop systems is proved. It is important to note that the controllers and observers can be designed independently. Finally, an example is given to demonstrate the effectiveness of the proposed approach.