System identification from a frequency response

Shawn H. Mahloch, Armando Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper considers the problem of approximating a possibly infinite-dimensional multi-input multi-output (MIMO) system by a finite-dimensional system. Unlike most methods which appear in the literature, the method discussed here does not assume a priori knowledge of an analytic expression (i.e. transfer function). An L 2 approximation problem is formulated and a closed form solution is presented. Several examples are provided in order to demonstrate the shortcomings as well as the positive aspects of the technique. The examples include a delay system, a damped Euler-Bernoulli Beam, and a model of an F-8 aircraft.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Conference on Decision and Control
Editors Anon
Number of pages6
StatePublished - 1993
EventProceedings of the 32nd Conference on Decision and Control - San Antonio, TX, USA
Duration: Dec 15 1993Dec 15 1993


OtherProceedings of the 32nd Conference on Decision and Control
CitySan Antonio, TX, USA

ASJC Scopus subject areas

  • Chemical Health and Safety
  • Control and Systems Engineering
  • Safety, Risk, Reliability and Quality


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