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Computation of J-Inner-Outer Factorizations of Rational Matrices

Varga, A. and Katayama, T. (1998) Computation of J-Inner-Outer Factorizations of Rational Matrices. Intern. Journ. Robust Nonlinear Control, 8, pp. 245-263. ISSN 1049-8923.

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Abstract

A new numerically reliable computational approach is proposed to compute the factorization of a rational transfer function matrix G as a product of a J-lossless factor with a stable, minimum-phase factor. In contrast to existing computationally involved ''one-shot'' methods which require the solution of Riccati or generalized Riccati equations, the new approach relies on an efficient recursive poles and zeros conjugation technique. The resulting factors have always minimal order descriptor representations. The proposed approach is completely general being applicable whenever G is proper/strictly proper or not, or of full column/row rank or not It is also applicable to solve the canonical J-spectral factorization problem.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1999,
Title:Computation of J-Inner-Outer Factorizations of Rational Matrices
Authors:
AuthorsInstitution or Email of Authors
Varga, A.UNSPECIFIED
Katayama, T.Kyoto University
Date:1998
Journal or Publication Title:Intern. Journ. Robust Nonlinear Control
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:8
Page Range:pp. 245-263
ISSN:1049-8923
Status:Published
Keywords:J-inner-outer factorization, system inversion, descriptor systems, numerical methods
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics > Robotic Systems
Deposited By: elib DLR-Beauftragter
Deposited On:14 Nov 2007
Last Modified:06 Jan 2010 16:29

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