State-space LPV model identification using kernelized machine learning

S.Z. Rizvi, J.M. Velni, F. Abbasi, R. Tóth, N. Meskin

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

18 Citaten (Scopus)
3 Downloads (Pure)

Samenvatting

This paper presents a nonparametric method for identification of MIMO linear parameter-varying (LPV) models in state-space form. The states are first estimated up to a similarity transformation via a nonlinear canonical correlation analysis (CCA) operating in a reproducing kernel Hilbert space (RKHS). This enables to reconstruct a minimal-dimensional inference between past and future input, output and scheduling variables, making it possible to estimate a state sequence consistent with the data. Once the states are estimated, a least-squares support vector machine (LS-SVM)-based identification scheme is formulated, allowing to capture the dependency structure of the matrices of the estimated state-space model on the scheduling variables without requiring an explicit declaration of these often unknown dependencies; instead, it only requires the selection of nonlinear kernel functions and the tuning of the associated hyper-parameters.

Originele taal-2Engels
Pagina's (van-tot)38-47
Aantal pagina's10
TijdschriftAutomatica
Volume88
DOI's
StatusGepubliceerd - 1 feb 2018

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