Vector-channel lattice filters and identification of flexible structures

Author

Jabbari, Fattaneh ; Gibson, James S.

Author_Institution

Dept. of Mech. Eng., California Univ., Irvine, CA, USA

Volume

33

Issue

5

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

448

Lastpage

456

Abstract

A novel derivative of a least-squares lattice filter is presented and applied to the identification of flexible structures. The vector-channel lattice given, derived in an infinite-dimensional history space, without matrix manipulations or geometric arguments, can constrain the autoregressive (AR) coefficients for several outputs to be the same. Numerical results for a simulated flexible structure compare the vector-channel lattice to the standard lattice filter. These results show that the frequencies and damping ratios for the most significant modes can be identified adaptively with lattice filters

Keywords

filtering and prediction theory; identification; statistical analysis; autoregressive coefficients; damping ratios; flexible structures; frequencies; identification; infinite-dimensional history space; least-squares lattice filter; vector channel lattice filters; Adaptive control; Adaptive filters; Associate members; Damping; Eigenvalues and eigenfunctions; Flexible structures; Frequency; Lattices; Signal processing algorithms; Vibrations;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.1223

Filename

1223