%0 Journal Article
%T Global finite-time observers for a class of nonlinear systems<br>一类非线性系统全局有限时间观测器设计
%A SHEN Yan-jun
%A LIU Wan-hai
%A ZHANG Yong
%A <br>沈艳军
%A 刘万海
%A 张勇
%J 控制理论与应用
%D 2010
%I 
%X Finite-time stability is investigated for a class of nonlinear systems and a new sufficient condition for global finite-time stability is presented. By using homogeneous theory and Lyapunov theory, together with an update law for the gain, we develop a global finite-time observer for a class of nonlinear systems with a lower-triangular structure. The observer is continuous but nonsmooth, which can reconstruct the states precisely in a finite-time interval.
%K finite-time stable
%K observer
%K nonsmooth
%K nonlinear system<br>有限时间稳定
%K 观测器
%K 非光滑
%K 非线性系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=315FDC0A6EA1F5E5A584AA0C47DC8636&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=94C357A881DFC066&sid=C6FC2A9EA7E6C4B9&eid=8B1FE194AD66DC3D&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=22