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Constrained state–space system identification with application to structural dynamics

Per Sjövall (Institutionen för tillämpad mekanik, Dynamik) ; Tomas McKelvey (Institutionen för signaler och system, Signalbehandling) ; Thomas Abrahamsson (Institutionen för tillämpad mekanik, Dynamik)
Preprints of the 14th IFAC Symposium on System Identification (SYSID 2006), 29-31 March 2006, Newcastle, Australia p. 1294-1299. (2006)
[Konferensbidrag, refereegranskat]

Constrained identification of state-space models representing a structural dynamic systems is addressed. Based on physical insight, transfer function constraints are formulated in terms of the state-space parametrization. An example shows that a method tailored for this application, which utilizes the non-uniqueness of a state-space model, outperforms the classic sequential quadratic programming method in terms of robustness and convergence properties.

Nyckelord: System identification, state-space models, mechanical systems, MIMO, constraints, optimization problems

Denna post skapades 2007-06-20. Senast ändrad 2014-09-02.
CPL Pubid: 43050