Non linear systems identification is a widespread topic and many techniques have been developed over the years in order to identify or synthesize black box models. Among the others, Wiener and Hammerstein structures are two of the more common nonlinear models, and identification techniques based on them are widespread in the literature. The choice of one structure over the other needs some a-priori knowledge. In this paper a novel method to determine if a system has a Wiener or Hammerstein nature is introduced. The method is based on the comparison of frequency responses in linear and nonlinear working region. Some simulated and real test results are reported in order to confirm the validity of the proposed approach.

Authors: Primavera, Andrea; Gasparini, Michele; Cecchi, Stefania; Hariya, Wataru; Murai, Shogo; Oishi, Koji; Piazza, Francesco
Affiliations: Universitá Politecnica della Marche, Ancona, Italy; KORG Inc., Tokyo, Japan(See document for exact affiliation information.)
AES Convention: 144 (May 2018) Paper Number: 9959
Publication Date: May 14, 2018 Import into BibTeX
Subject: Posters: Measurement
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=19476

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