Adaptive output regulation of uncertain nonlinear systems with unknown control directions  

作　　者：Jingyu CHEN Zhenhong LI Zhengtao DING 

机构地区：[1]School of Electrical and Electronic Engineering, University of Manchester

出　　处：《Science China(Information Sciences)》2019年第8期206-208,共3页中国科学（信息科学）（英文版）

摘　　要：Dear editor, The output regulation problem for nonlinear systems with unknown exosystems has been an important research topic over the last few decades [1]. The early results commonly assume that the sign of the high-frequency gain is known. It is shown [2] that a nonlinear system can be transformed into a special observer form under geometrie coordinatefree conditions. In this case, with a known control direction, the problem can be solved by a robust control method such as high-gain feedback. However, this method is not applicable when the high-frequency gain sign is unknown.

关 键 词：ADAPTIVE OUTPUT regulation UNCERTAIN nonlinear systems UNKNOWN control DIRECTIONS 

分 类 号：TP[自动化与计算机技术]