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Optimal controller realizations with minimum roundoff noise gain using δ-operator

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2 Author(s)
Weihua Xu ; National Lab. of Ind. Control Technol., Zhejiang Univ., Hangzhou, China ; Jun Wu

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.

Published in:

Control, Automation, Robotics and Vision Conference, 2004. ICARCV 2004 8th  (Volume:3 )

Date of Conference:

6-9 Dec. 2004