Analysis and design for the second order nonlinear continuous extended states observer  

作　　者：Yi Huang Jingqing Han 

机构地区：[1]Chinese Acad Sci, Acad Math & Syst Sci, Inst Syst Sci, Beijing 100080, Peoples R China

出　　处：《Chinese Science Bulletin》2000年第21期1938-1944,共7页

摘　　要：The extended state observer (ESO) is a novel observer for a class of uncertain systems. Since ESO adopts the continuous non-smooth structure, the classical observer design theory is hard to use for ESO analysis. In this note, the self-stable region (SSR) approach, which is a nonlinear synthesis method for nonlinear uncertain systems, will be used for ESO design and its stability analysis. The advantages of the non-smooth structure in ESO for improving the convergence properties and the estimation precision will be shown.The extended state observer (ESO) is a novel observer for a class of uncertain systems. Since ESO adopts the continuous non-smooth structure, the classical observer design theory is hard to use for ESO analysis. In this note, the self-stable region (SSR) approach, which is a nonlinear synthesis method for nonlinear uncertain systems, will be used for ESO design and its stability analysis. The advantages of the non-smooth structure in ESO for improving the convergence properties and the estimation precision will be shown.

关 键 词：EXTENDED state observer (ESO) CONTINUOUS NON-SMOOTH structure self-stable region (SSR) method. 

分 类 号：O231.2[理学—运筹学与控制论]