Naslov
Piecewise Affine Identification of MIMO Processes

Autori
Vašak, Mario ; Klanjčić, Damir ; Perić, Nedjeljko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2006 IEEE International Conference on Control Applications / - : Omnipress, 2006, 1493-1498

Skup
2006 IEEE International Conference on Control Applications

Mjesto i datum
München, Njemačka, 04.10.2006. - 06.10.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
discrete-time piecewise affine model; piecewise ARX; identification; clustering; linear classification; MIMO processes; magnetic levitation; experiment

Sažetak
In this paper PieceWise ARX (PWARX) model identification of a nonlinear MIMO process is discussed. PWARX models comprise several ARX models where each of them is valid over a polytope in the regressor space. The identification procedure simultaneously estimates both the polytopic regions and the ARX model coefficients in each region. Here we use the clustering-based identification procedure, that is designed for MISO processes, and proceed in a natural way to extend this approach to identification of nonlinear MIMO processes. A very important role in identification of process nonlinearities for each MISO process plays a suitable linear transformation in the regressor space. A new way for choosing that linear transformation is suggested, automatically from the identification data position in the regressor space. Using the proposed procedure, a PWARX MIMO model of a magnetic levitation laboratory setup is identified and validated.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Temeljne tehničke znanosti

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