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A dynamic programming algorithm for input estimation on linear time-variant systems

Lars Nordström (Institutionen för tillämpad mekanik, Dynamik)
Computer Methods in Applied Mechanics and Engineering (00457825). Vol. 195 (2006), 44-47, p. 6407-6427.
[Artikel, refereegranskad vetenskaplig]

A time domain input estimation algorithm for linear systems with general time-varying parameters is developed. The algorithm is an extension of an existing approach for time-invariant state space models and several new features, such as higher order input approximations and an extended time-variant output relation including direct input influence, are introduced. Numerical examples are given to illustrate the new features and show that the algorithm is valid in a general time-variant setting. In particular, excellent results are obtained for an ill-posed moving force identification problem with noise-contaminated data, treated with Tikhonov regularization.

Denna post skapades 2009-12-04.
CPL Pubid: 102811


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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik


Teknisk mekanik

Chalmers infrastruktur