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Stability of schur polynomials under coefficient perturbation

 

作者: Shui‐Hsiu Lin,   Te‐Son Kuo,   Chen‐Fa Hsu,   I‐Kong Fong,   Yau‐Tarng Juang,  

 

期刊: Journal of the Chinese Institute of Engineers  （Taylor Available online 1989）
卷期: Volume 12, issue 4  

页码: 539-542

 

ISSN:0253-3839

 

年代: 1989

 

DOI:10.1080/02533839.1989.9677190

 

出版商: Taylor & Francis Group

 

关键词: stability;robustness;perturbation

 

数据来源: Taylor

 

摘要:

In this paper, we are concerned with the stability robustness of characteristic polynomials with perturbed coefficients for linear discrete‐time systems. An upper bound on the allowable coefficient perturbation of a Schur polynomial with retaining stability is obtained. The proposed upper bound is directly formulated in terms of the polynomial under consideration and its value can be determined by numerical computation. We also provide a sufficient condition for the stability of interval polynomials.

 

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