REDUCTION OF HIGH-ORDER DISCRETE-TIME-SYSTEMS

被引：3
|
作者：
HAMIDIHASHEMI, H [1 ]
LEONDES, CT [1 ]
机构：
[1] UNIV CALIF LOS ANGELES,DEPT MECH AEROSP & NUCL ENGN,LOS ANGELES,CA 90024
来源：
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE | 1988年 / 19卷 / 09期
关键词：
Discrete time control systems - Linear transformations - Digital control systems - Approximation algorithms - Stability criteria;
D O I：
10.1080/00207728808964083
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A combination of bilinear transformation, the Routh stability criterion and the integral squared error (ISE) criterion is proposed for the linear model reduction of high-order discrete-time systems. The approach consists of a four-step computational scheme. In the first three steps, by the use of the bilinear transformation and Routh approximation methods, the denominator of the reduced model is obtained. In the fourth step, a recursive algorithm is used to minimize the variance of the spectral density between the original and the reduced model to obtain optimal coefficients for the numerator of the reduced model. © 1988, Copyright Taylor & Francis Group, LLC.
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页码：1883 / 1890
页数：8
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