%0 Journal Article
%T Error Analysis of Digital Controller Using δ Operators<br>Δ变换与数字控制器误差分析
%A CHEN Li
%A ZHANG Jian-wu
%A XI Gang
%A <br>陈　俐
%A 张建武
%A 习　纲
%J 控制理论与应用
%D 2001
%I 
%X A discrete model described by Δ-transform converges to itscontinuous counterpart as sample time T→0.Introducing Δ-transform as a new digital control method.This paper analyses the floating error of the corresponding δ-operator and designs a poleassignment controller to track ideal output directly in discrete field.The simulation results from a 2-order system show that δ-operator has better performance for round off noise caused by finite word length,higher accuracy and stability than z-operator.
%K △变换
%K δ算子
%K 数字控制器
%K 计算机控制系统
%K 误差分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=727BD453428DDEE1&yid=14E7EF987E4155E6&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=C753EB8AC8F551B9&eid=BB0EA31DB1B01173&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=1&reference_num=2