A criterion for selecting the order of a reduced dimensional model for a multivariable system is introduced. The criterion is based on impulse response energy error and is applicable for Routli approximant models. The proposed method is illustrated using, a numerical example. © 1983 Taylor & Francis Ltd.

Bijnan Bandyopadhyay

Department of Electrical Engineering

IIT Jodhpur

A.S. Rao

S.S. Lamba

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Journal	International Journal of Systems Science
ISSN	00207721