Adaptive identification of a flexible structure by lattice filters

This paper presents adaptive parameter identification results for a complex flexible structure with many closely packed natural frequencies. Least-squares lattice filters, which are recursive in both time and order, are used to estimate the number of excited modes, natural frequencies, and damping ratios from input/output data. One-step-ahead output prediction also is generated by the lattice filters. The paper compares results from several experiments on the same structure, including one experiment during which the mass of the structure changes.

[1]  J. Rissanen,et al.  Modeling By Shortest Data Description* , 1978, Autom..

[2]  M. Morf,et al.  Recursive ladder algorithms for ARMA modeling , 1980, 1980 19th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes.

[3]  Thomas Kailath,et al.  Linear Systems , 1980 .

[4]  M. Morf,et al.  Recursive least squares ladder estimation algorithms , 1981 .

[5]  B. Friedlander,et al.  Lattice filters for adaptive processing , 1982, Proceedings of the IEEE.

[6]  R. C. Montgomery,et al.  Identification of structural dynamics systems using least-square lattice filters. [large space structures] , 1983 .

[7]  Lennart Ljung,et al.  Theory and Practice of Recursive Identification , 1983 .

[8]  Daniel T. L. Lee.  System Order Estimation of ARMA Models by Ladder Canonical Forms , 1983, 1983 American Control Conference.

[9]  R. C. Montgomery,et al.  Identification of the Dynamics of a Two-Dimensional Grid Structure using Least Square Lattice Filters , 1984, 1984 American Control Conference.

[10]  Graham C. Goodwin,et al.  Adaptive filtering prediction and control , 1984 .

[11]  Lennart Ljung,et al.  Error propagation properties of recursive least-squares adaptation algorithms , 1985, Autom..

[12]  N. Sundararajan,et al.  Adaptive modal control of structural dynamic systems using recursivelattice filters , 1985 .

[13]  R. C. Montgomery,et al.  Control effectiveness characterization for state estimation and control on a highly flexible grid , 1986 .

[14]  Faryar Jabbari,et al.  Adaptive identification of flexible structures by lattice filters , 1987 .

[15]  F. Jabbari,et al.  Identification of flexible structures using an adaptive order-recursive method , 1988, Proceedings of the 27th IEEE Conference on Decision and Control.

[16]  F. Jabbari,et al.  Vector-channel lattice filters and identification of flexible structures , 1988 .

[17]  F. Jabbari,et al.  A digital input/output model for trace-class systems , 1989 .