Balanced realizations via model operators
作者:
N. J. YOUNG,
期刊:
International Journal of Control
(Taylor Available online 1985)
卷期:
Volume 42,
issue 2
页码: 369-389
ISSN:0020-7179
年代: 1985
DOI:10.1080/00207178508933370
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
For a given rational function G{z), analytic outside the closed unit disc and satisfying G(∞) = 0, a new method is proposed for the realization of G by a discrete linear system which is balanced (i.e. its controllability and observability gramians are equal and diagonal). The main numerical steps are the evaluation of a polynomial in a companion matrix, a Cholesky decomposition and a singular-value decomposition. The construction depends on properties of model operators—that is, compressions of the shift operator on the Hardy space H2.
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