一类不确定非线性系统的输出反馈半全局镇定

研究了一类不确定非线性系统的输出反馈半全局镇定问题. 不同于现有文献，本文研究的控制系统具有更强的非线性和未知控制系数，这增加了设计输出反馈控制器的难度. 基于反推方法和输出反馈占优方法，设计了输出反馈半全局控制器. 通过选取适当的设计参数，该控制器可以保证闭环系统的半全局渐近稳定. 仿真实例验证了理论结果的有效性.

Semiglobal Stabilization via Output-feedback for a Class of Uncertain Nonlinear Systems

This paper considers the semiglobal stabilization via output-feedback for a class of uncertain nonlinear systems. Different from the existing results, the systems under investigation possess more serious nonlinearities and unknown control coefficients which substantially increase the difficulty of outputfeedback controller design. Combining the backstepping method and output-feedback domination approach, a semiglobal stabilizing controller is explicitly given, which can guarantee that the closed-loop system achieves the semiglobal asymptotic stability under the appropriate choice of design parameter. A simulation example validates the theoretical results and the proposed approach.