IMPROVED STABILITY ROBUSTNESS OF LINEAR DISCRETE-TIME-SYSTEMS VIA A LINEAR FRACTIONAL TRANSFORMATION

被引：3
|
作者：
SHI, YQ
YEN, KK
ZHANG, DF
机构：
[1] Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark
[2] Department of Electrical and Computer Engineering, Florida International University, Miami
[3] Department of Electrical Engineering, University of Texas, Austin
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 1990年 / 37卷 / 06期
关键词：
STABILITY ROBUSTNESS; DISCRETE-TIME POLYNOMIAL; GEOMETRIC APPROACH;
D O I：
10.1109/41.103459
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Through a linear fractional transformation in the frequency domain, a set of hyperellipsoids, containing only such points in the coefficient space that they correspond to stable polynomials in linear discrete-time systems, have been attained. Procedures are presented in this paper to search for a suitable transform parameter-beta that will achieve a possibly larger coefficient perturbation range (with guaranteed stability) than that obtained by Soh et al. [7]. When beta = 0, the hyperellipsoid degenerates to the largest hypersphere [7]. The result in this paper is, therefore, a generalization of the result obtained in [7].
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页码：538 / 543
页数：6
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