Title :
Optimal controller realizations with minimum roundoff noise gain using δ-operator
Author :
Xu, Weihua ; Wu, Jun
Author_Institution :
National Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China
Abstract :
The author present a study of the finite word length (FWL) implementation for digital controller structures using δ-operator. The closed-loop roundoff noise gain using δ-operator is defined and analyzed based on stochastic control theory. The optimal controller realizations are obtained via minimizing the roundoff noise gain. A numerical example is presented to illustrate the design procedure and the effectiveness of the proposed strategy.
Keywords :
closed loop systems; digital control; discrete time systems; gain control; noise; optimal control; roundoff errors; stochastic systems; δ-operator; closed-loop roundoff noise gain; digital controller structures; finite word length; minimum roundoff noise gain; optimal controller; stochastic control theory; Control systems; Control theory; Digital control; Hardware; Industrial control; Optimal control; Process control; Quantization; Signal to noise ratio; Stochastic resonance;
Conference_Titel :
Control, Automation, Robotics and Vision Conference, 2004. ICARCV 2004 8th
Print_ISBN :
0-7803-8653-1
DOI :
10.1109/ICARCV.2004.1469298
