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Data Informativity for the Identification of particular Parallel Hammerstein Systems

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0 Published in 2020 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2020.12.1308

Abstract: Abstract To obtain a consistent estimate when performing an identification with Prediction Error, it is important that the excitation yields informative data with respect to the chosen model structure. While the characterization of this property… read more here.

Keywords: informativity identification; data informativity; hammerstein systems;

Parameter Estimation of Parallel Wiener-Hammerstein Systems by Decoupling their Volterra Representations

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0 Published in 2021 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2021.08.402

Abstract: Abstract Nonlinear dynamic systems are often approximated by a Volterra series, which is a generalization of the Taylor series for systems with memory. However, the Volterra series lacks physical interpretation. To take advantage of the… read more here.

Keywords: parameter estimation; parallel wiener; wiener hammerstein; hammerstein systems ... See more keywords

Hierarchical identification for multivariate Hammerstein systems by using the modified Kalman filter

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1 Published in 2017 at "Iet Control Theory and Applications"

DOI: 10.1049/iet-cta.2016.1033

Abstract: The parameter estimation problem for multi-input multi-output Hammerstein systems is considered. For the Hammerstein model to be identified, its dynamic time-invariant subsystem is described by a controlled autoregressive model with a communication delay. The modified… read more here.

Keywords: hierarchical identification; kalman filter; hammerstein systems; modified kalman ... See more keywords

Decomposition-based recursive least-squares parameter estimation algorithm for Wiener-Hammerstein systems with dead-zone nonlinearity

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0 Published in 2017 at "International Journal of Systems Science"

DOI: 10.1080/00207721.2017.1320455

Abstract: ABSTRACT In this paper, a decomposition-based recursive least-squares algorithm is proposed for the parameter estimation of Wiener-Hammerstein systems with dead-zone. Based on a smooth parameterisation of the dead-zone nonlinearity, the Wiener-Hammerstein systems with dead-zone can… read more here.

Keywords: recursive least; least squares; systems dead; hammerstein systems ... See more keywords

Decoupled Parameter Estimation Methods for Hammerstein Systems by Using Filtering Technique

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0 Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2877622

Abstract: The implementation of parameter estimation of Hammerstein systems is much difficult due to the existing parameter products from the nonlinear block and the linear block. This paper directly decomposes the parameter coupling between the nonlinear… read more here.

Keywords: estimation; estimation methods; parameter estimation; decoupled parameter ... See more keywords

Nonparametric Testing for Hammerstein Systems

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1 Published in 2022 at "IEEE Transactions on Automatic Control"

DOI: 10.1109/tac.2022.3171389

Abstract: We examine the problem of testing a parametric form of the nonlinearity of Hammerstein systems against a nonparametric alternative. This article proposes test statistics relying on nonparametric orthogonal series regression function estimates. An asymptotic theory… read more here.

Keywords: nonparametric testing; hammerstein systems; systems nonparametric; testing hammerstein ... See more keywords