Title :
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
fDate :
5/1/1988 12:00:00 AM
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;
Journal_Title :
Automatic Control, IEEE Transactions on
