%0 Journal Article
%T Discrete-time sliding-mode control in panoramic aerial camera<br>全景式航空相机的离散滑模控制
%A ZHANG Xue-fei
%A DING Ya-lin
%A LI Xin-yang
%A CHEN Zhi-chao
%A <br>张雪菲
%A 丁亚林
%A 李昕阳
%A 陈志超
%J 控制理论与应用
%D 2012
%I 
%X A discrete-time sliding-mode control method based on reduced-order state observer is proposed to provide fast response and small overshoot for the drawtube control system of a panoramic aerial camera. In this method, the angular velocity and acceleration of the camera are measured for controlling the velocity system, and a power-function reaching law is proposed to substitute the conventional reaching law for suppressing the control chattering and the steadystate chattering caused by the conventional reaching law. The non-chattering characteristics and the system stability are analyzed theoretically. This controller has been applied to control the drawtube system of a panoramic aerial camera on an experimental platform; the experiment results show that this control scheme can effectively eliminate the chattering and make the drawtube system achieve desired dynamical performances.
%K panoramic aerial camera
%K reduced-order state observer
%K angular velocity
%K angular acceleration
%K reaching law
%K discrete-time sliding-mode control<br>全景式航空相机
%K 降维状态观测器
%K 角速度
%K 角加速度
%K 趋近律
%K 离散滑模控制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=93DE4001FBC35FE8E36EE1A3F1E82F63&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=9CF7A0430CBB2DFD&sid=4E3541241257D204&eid=C4690645D4CCDCE7&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=0