Tuning nonlinear state-space models using unconstrained multiple shooting

Onderzoeksoutput: Conference paper

2 Citaten (Scopus)

Samenvatting

A persisting challenge in nonlinear dynamical modelling is parameter inference from data. Provided that an appropriate model structure was selected, the identification problem is profoundly affected by a choice of initialisation. A particular challenge that may arise is initialisation within a region of the parameter space where the model is not contractive. Exploring such regions is not feasible using the conventional optimisation tools for they require a bounded evaluation of the cost. This work proposes an unconstrained multiple shooting technique, able to mitigate stability issues during the optimisation of nonlinear state-space models. The technique is illustrated on simulation results of a Van der Pol oscillator and benchmark results on a Bouc-Wen hysteretic system.

Originele taal-2English
Pagina's (van-tot)334-340
Aantal pagina's7
TijdschriftIFAC-PapersOnLine
Volume53
Nummer van het tijdschrift2
DOI's
StatusPublished - 1 jan 2020

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