On the Model Reduction of Discrete Time-Varying Systems
Department of Mathematics, College of Sciences, P.O. Box 80203, King Abdulaziz University, Jeddah - 21589 (Saudi Arabia)
DOI : http://dx.doi.org/10.13005/msri/040103
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A method for approximating multivariable linear discrete time-varying system is described. The method is based on minimizing the difference between the system outputs and the reduced order model outputs. The optimal model parameters are given by a set of non-linear equations. It is shown that when the output and the state of the model are equal, the synthesis simplifies to a linear problem. The results are illustrated by a numerical example.
KEYWORDS:Model reduction; discrete time-varying system
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769 Accepted on: 10 Jun 2007
