CEC Faculty Articles

Title

Identification of a Benchmark Wiener-Hammerstein: A Bilinear and Hammerstein–Bilinear Model Approach

Document Type

Article

Date

11-2012

Publication Title

Control Engineering Practice

ISSN or ISBN

0967-0661

Volume

20

Issue

11

First Page

1156

Last Page

1164

Description

In this paper the Wiener–Hammerstein Benchmark is identified as a bilinear discrete system. The bilinear approximation relies on both facts that the Wiener–Hammerstein system can be described by a Volterra series which can be approximated by bilinear systems. The identification is performed with an iterative bilinear subspace identification algorithm previously proposed by the authors. In order to increase accuracy, polynomial static nonlinearities were added to the bilinear model input. These Hammerstein type bilinear models are then identified using the same iterative subspace identification algorithm.

DOI

10.1016/j.conengprac.2012.04.002

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