Identification of nonlinear systems having discontinuous nonlinearity. (27th December 2019)

• Record Type: Journal Article
• Authors: Brouri, Adil; Kadi, L.; Benyassi, Mohamed
• Is Part Of: International journal of modelling, identification and control. Volume 33:Number 2(2020)
• Page Start: 130
• Page End: 137
• Publication Date: 2019-12-27
• Subjects: nonlinear systems -- nonlinear systems identification -- discontinuous nonlinearity -- non-parametric linear block -- hard nonlinearity -- Wiener systems; Engineering -- Methodology -- Periodicals; Science -- Methodology -- Periodicals; 001.42
• Languages: English
• ISSNs: 1746-6172

Abstract

This paper deals with the identification of nonlinear systems. Presently, the nonlinear system is described by the Wiener model. The linear element is non-parametric and may be of unknown structure. The nonlinear part is allowed to be discontinuous or of hard type and non-invertible. A two-stage identification method is developed to get a set of points of the nonlinear part and estimates of the linear dynamic element. This method is based on simple geometric analysis and involves easily generated excitation signals.