Results 11 to 20 of about 1,110 (179)

Hammerstein Model for Speech Coding [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
A nonlinear Hammerstein model is proposed for coding speech signals. Using Tsay's nonlinearity test, we first show that the great majority of speech frames contain nonlinearities (over 80% in our test data) when using 20-millisecond speech frames. Frame
Turunen Jari, Tanttu Juha T, Loula Pekka
doaj   +3 more sources

Identification of Hammerstein–Wiener models [PDF]

open access: yesAutomatica, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adrian Wills   +3 more
openaire   +2 more sources

Nonlinear Hammerstein System Identification: A Novel Application of Marine Predator Optimization Using the Key Term Separation Technique

open access: yesMathematics, 2022
The mathematical modelling and optimization of nonlinear problems arising in diversified engineering applications is an area of great interest. The Hammerstein structure is widely used in the modelling of various nonlinear processes found in a range of ...
Khizer Mehmood   +6 more
doaj   +1 more source

Nonparametric models for Hammerstein-Wiener and Wiener-Hammerstein system identification

open access: yesIFAC-PapersOnLine, 2020
Abstract We propose a framework for modeling structured nonlinear systems using nonpara-metric Gaussian processes. In particular, we introduce a two-layer stochastic model of latent interconnected Gaussian processes suitable for modeling Hammerstein-Wiener and Wiener-Hammerstein cascades.
Risuleo, Riccardo Sven   +1 more
openaire   +3 more sources

Fuzzy Hammerstein Model of Nonlinear Plant

open access: yesNonlinear Analysis, 2008
This paper presents the synthesis and analysis of the enhanced predictive fuzzy Hammerstein model of the water tank system. Fuzzy Hammerstein model was compared with three other fuzzy models: the first was synthesized using Mamdani type rule base, the ...
R. Liutkevičius
doaj   +1 more source

Modeling and simulating dynamics of lithium-ion batteries using block-oriented models with piecewise linear static nonlinearity [PDF]

open access: yesE3S Web of Conferences, 2021
The article deals with the research of the efficiency of modelling the dynamics of voltage change in lithium-ion rechargeable batteries in charging/discharging modes using nonlinear block-oriented systems.
Mykhailenko Oleksii
doaj   +1 more source

WH-MOEA: A Multi-Objective Evolutionary Algorithm for Wiener-Hammerstein System Identification. A Novel Approach for Trade-Off Analysis Between Complexity and Accuracy

open access: yesIEEE Access, 2020
Several approaches have been presented to identify Wiener-Hammerstein models, most of them starting from a linear dynamic model whose poles and zeros are distributed around the static non-linearity.
J. Zambrano   +3 more
doaj   +1 more source

Maximum Likelihood Identification of Dual-rate Hammerstein Systems

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2021
Aiming at a kind of dual-rate Hammerstein system, based on the auxiliary model identification idea, using the maximum likelihood principle and recursive identification technology, this paper proposes a maximum likelihood recursive least squares algorithm.
LI Junhong ZHANG Jiali LU Guoping
doaj   +1 more source

Empirical Modeling of Heating Element Power for the Czochralski Crystallization Process [PDF]

open access: yesModeling, Identification and Control, 2010
The Czochralski (CZ) crystallization process is used to produce monocrystalline silicon. Monocrystalline silicon is used in solar cell wafers and in computers and electronics. The CZ process is a batch process, where multicrystalline silicon is melted in
Magnus Komperød, Bernt Lie
doaj   +1 more source

Identification of Nonlinear Systems Using the Hammerstein-Wiener Model with Improved Orthogonal Functions

open access: yesElektronika ir Elektrotechnika, 2023
Hammerstein-Wiener systems present a structure consisting of three serial cascade blocks. Two are static nonlinearities, which can be described with nonlinear functions.
Sasa S. Nikolic   +6 more
doaj   +1 more source

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