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Modeling and identification of Wiener systems with two-segment nonlinearities

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1 Author(s)
Voros, J. ; Dept. of Autom. & Control, Slovak Tech. Univ., Bratislava, Slovakia

The paper deals with modeling and parameter identification of Wiener systems with strongly asymmetric nonlinearities for control. Two-segment polynomial approximations are proposed for static nonlinear block characteristics. Application of a decomposition technique provides a special form of the Wiener model with two-segment polynomials, where all the model parameters to be estimated are separated. An iterative method with internal variable estimation is used for the model parameter estimation.

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Control Systems Technology, IEEE Transactions on  (Volume:11 ,  Issue: 2 )