中文摘要：

首先研究一类非线性不确定系统,提出了构造连续反馈控制器的设计方法,并且证明了在适当条件下,相应的闭环系统是全局指数稳定的;然后研究一类控制项具有不确定性的非线性不确定系统,给出了新的反馈控制设计方法,并设计出连续的控制器使得相应的闭环系统是全局指数稳定的.实例验证了结果的有效性.

英文摘要：

First,a class of uncertain nonlinear systems is studied.The design method of constructing a continuous feedback controller is proposed,and it is proved that under appropriate conditions the corresponding closed-loop system is globallyly,exponentiallyly stable.Then a class of nonlinear systems with uncertainties in the controll term is considered.A new design method of feedback control is presented and a continuous controller is designed,which guarantees that the corresponding closed-loop system is globally,exponentially stable.A numerical example is given to show the effectiveness of results.