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A program for solving the L2 reduced-order model problem with fixed denominator degree

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A set of necessary conditions that must be satisfied by the L2 optimal rational transfer matrix approximating a given higher-order transfer matrix, is briefly described. On its basis, an efficient iterative numerical algorithm has been obtained and implemented using standard MATLAB functions. The purpose of this contribution is to make the related computer program available and to illustrate some significant applications.

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Work partially supported byConsorzio Padova Ricerche through the IRI programme “Consortia Città Ricerche—Central European Initiative”.

Communicated by C. Brezinski

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Krajewski, W., Lepschy, A., Redivo-Zaglia, M. et al. A program for solving the L2 reduced-order model problem with fixed denominator degree. Numer Algor 9, 355–377 (1995).

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  • Linear dynamic systems
  • rational approximation
  • L2 norm

AMS subject classification

  • 41A20