نتایج جستجو برای: wiener and hammerstein model

تعداد نتایج: 17169194  

Journal: :SIAM Journal on Control and Optimization 2019

Journal: :IEEE transactions on image processing : a publication of the IEEE Signal Processing Society 2014
Chao Chen Lark Kwon Choi Gustavo de Veciana Constantine Caramanis Robert W. Heath Alan C. Bovik

Newly developed hypertext transfer protocol (HTTP)-based video streaming technologies enable flexible rate-adaptation under varying channel conditions. Accurately predicting the users' quality of experience (QoE) for rate-adaptive HTTP video streams is thus critical to achieve efficiency. An important aspect of understanding and modeling QoE is predicting the up-to-the-moment subjective quality...

Journal: :Signal Processing 2015
Daniel G. Silva Jugurta R. Montalvão Filho Romis de Faissol Attux Luis Coradine

This work proposes a new approach to the blind inversion of Wiener systems. A Wiener system is composed of a linear time-invariant (LTI) sub-system followed by a memoryless nonlinear function. The goal is to recover the input signal by knowing just the output of the Wiener system, and the straightforward scheme to achieve this is called the Hammerstein system –– apply a memoryless nonlinear map...

Journal: :Automatica 2002
Yucai Zhu

Estimation of a single-input single-output block-oriented model is studied. The model consists of a linear block embedded between two static nonlinear gains. Hence it is called N-L-N Hammerstein-Wiener model. First the model structure is motivated and the disturbance model is discussed. The paper then concentrates on parameter estimation. A relaxation iteration scheme is proposed by making use ...

2016
Alexander Artiga Gonzalez Raphael Bertschinger Dietmar Saupe

V̇ O2 and V̇CO2 measurements are central to methods for assessment of physical fitness and endurance capabilities in athletes. As measuring V̇ O2 and V̇CO2 is difficult outside a lab, models with good prediction properties are necessary for online analysis and modeling in the field. Easier to measure are heart rate and during cycling also power. Thus, the here described models are based on either o...

Journal: :Automatica 2015
Koen Tiels Maarten Schoukens Johan Schoukens

Block-oriented models are often used to model nonlinear systems. These models consist of linear dynamic (L) and nonlinear static (N) sub-blocks. This paper addresses the generation of initial estimates for a Wiener-Hammerstein model (LNL cascade). While it is easy to measure the product of the two linear blocks using a Gaussian excitation and linear identification methods, it is difficult to sp...

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