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Model Reduction Via Optimization Of Frequency Responce

Authors
  • Bogdan Dumitrascu

    University "Politehnica" of Bucharest, Faculty of Automatic Control and Computers

  • Andrei Petre

    University "Politehnica" of Bucharest, Faculty of Automatic Control and Computers

Abstract
A comparison of two model reduction methods is proposed in this paper. The first is the classical balanced model truncation, while the second is a direct optimization method, using convex stability domains. Design of approximately linear phase IIR filters is performed using the two methods and the second is shown to be generally better for a frequency weighted least squares criterion. However, the first may serve for initialization of the optimization process.
References
Published
2003-06-30
Section
Articles