COMBINED METHOD USING MODIFIED ROUTH STABILITY ARRAY AND MSE CRITERION FOR THE REDUCTION OF DISCRETE-TIME SYSTEMS.

被引：0
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作者：
Hwang, Chyi [1 ]
机构：
[1] Natl Cheng Kung Univ, Tainan, Taiwan, Natl Cheng Kung Univ, Tainan, Taiwan
来源：
Chung-kuo Kung Ch'eng Hsueh K'an/Journal of the Chinese Institute of Engineers | 1986年 / 9卷 / 06期
关键词：
SYSTEM STABILITY - SYSTEMS ENGINEERING;
D O I：
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学科分类号：
摘要：
A new mixed method using the modified stability array and the mean-square error (MSE) criterion is proposed for deriving reduced-order z-transfer functions for discrete-time systems. More precisely, the modified Routh stability array is used to obtain the reduced-order denominator, thus ensuring stability preservation, while the numerator is obtained by minimizing the mean-square error between the unit step responses of the original system and reduced model. The main feature of the method is that it does not actually evaluate the system and model responses in the step of minimizing the mean-square error.
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页码：647 / 656
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