Approximated mixed sensitivity reduction for SISO feedback systems

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper proposes a controller synthesis method for single-input single-output (SISO) discrete-time systems by approximately minimizing an H2-normed mixed sensitivity criterion. Operating in the Discrete Fourier Transform (DFT) domain, we construct an l2-space vector minimization problem to approximate the original H2 control problem. The dimension of the newly constructed problem equals to the number of the DFT points (N) chosen. The approximation in such a setting is sufficient for a reasonably small N due to the stability and short-duration characteristics of the elements involved in the problem formulation. The analytic solution of the l2 problem is given, and the controller is constructed via the N Markov parameters associated with the analytic solution. Two examples are given to explain the proposed method.

Original languageEnglish (US)
Pages910-915
Number of pages6
StatePublished - Dec 1 1996
EventProceedings of the 1996 IEEE International Conference on Control Applications - Dearborn, MI, USA
Duration: Sep 15 1996Sep 18 1996

Other

OtherProceedings of the 1996 IEEE International Conference on Control Applications
CityDearborn, MI, USA
Period9/15/969/18/96

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