STABILIZATION OF DISCRETE-TIME MINIMUM PHASE NONLINEAR SYSTEM VIA DYNAMIC OUTPUT FEEDBACK
离散时间非线性最小相位系统的动态输出反馈镇定

In this paper, we study the problem of stabilization of discrete time minimum phase nonlinear system via dynamic output feedback. The concept of approximately asymptotic stability is introduced. Based on the concept, we propose a new method for design of dynamic compensators of discrete time minimum phase nonlinear system. The main result is that a discrete time minimum phase nonlinear system is stabilizable via dynamic output feedback if its zero dynamics is approximately asymptotically stable. The design of dynamic compensators is constructive.