%0 Journal Article
%T A new nonlinear output tracking controller via output-feedback<br>
%A Yun ZHANG
%A Yungang LIU
%A Yuqin DING
%A <br>
%J 控制理论与应用
%D 2006
%I 
%X In this paper, the output tracking control is investigated for a class of nonlinear systems when only output is available for feedback. Based on the multivariable analog of circle criterion, an observer is first introduced. Then, the observer-based output tracking controller is constructively designed by using the integral backstepping approach together with completing square. It is shown that, under relatively mild conditions, all the closed-loop signals are uniformly bounded. Meanwhile the system output asymptotically tracks the desired output. A simulation example is given to illustrate the effectiveness of the theoretical results.
%K Nonlinear systems
%K Multivariable analog of circle criterion
%K Output tracking control
%K Output-feedback
%K Integral backstepping approach<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=226AEA66C99DC3F3F02539C50987177B&yid=37904DC365DD7266&vid=E158A972A605785F&iid=E158A972A605785F&sid=965F4E89CD0AFC30&eid=73648F51F187AC5E&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=0