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Model simplification of stable discrete‐time systems by the squared magnitude Padé approximation

 

作者: Chyi Hwang,   Hang‐Chun Chow,  

 

期刊: Journal of the Chinese Institute of Engineers  （Taylor Available online 1986）
卷期: Volume 9, issue 3  

页码: 267-274

 

ISSN:0253-3839

 

年代: 1986

 

DOI:10.1080/02533839.1986.9676888

 

出版商: Taylor & Francis Group

 

关键词: modelling;model reduction;discrete‐time systems;frequency response

 

数据来源: Taylor

 

摘要:

A squared magnitude Padé approximation technique is presented for the model simplification of stable discrete‐time systems. The simplification is started from the squared magnitude functionM(ejTω)=G(ejTω)G(e–jTω), whereG(z) is thez‐transfer function of a given high order discrete‐time system. The method is fully computer‐oriented and leads to a satisfactory approximation while preserving stability and minimum‐phase characteristics.

 

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