Robust identification of lightly damped flexible structures by means of orthonormal bases

Author

Baldelli, Darío H. ; Mazzaro, María Ceclila ; Pena, Ricardo S Sánchez

Author_Institution

Fac. Regional Haed, Univ. Tecnologica Nacional, Haedo, Argentina

Volume

9

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

696

Lastpage

707

Abstract

We consider the problem of robust identification of lightly damped flexible structures by means of a family of orthonormal basis functions, in order to model the dynamics of this kind of systems in a certain frequency range of interest. It is possible in this way to reduce conservativeness of the identification process. We propose a method to generate the orthonormal bases that is based on the cascade of balanced state-space realizations of all-pass filters, and develop for this case a less conservative explicit worst case error bounds. We present an application of this method to both simulated and experimental frequency response data

Keywords

artificial satellites; dynamics; flexible structures; frequency response; frequency-domain analysis; identification; interpolation; state-space methods; all-pass filters; artificial satellite; dynamics; error bounds; flexible structures; frequency domain interpolation; frequency response; identification; orthonormal basis functions; state-space; Control system synthesis; Filters; Flexible structures; Frequency response; Interpolation; Noise robustness; Robust control; Stability; System testing; Transfer functions;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.944465

Filename

944465