Parameter identification of discontinuous Hammerstein systems
Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
Brief paper: Iterative identification of Hammerstein systems
Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
Automatica (Journal of IFAC)
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SIAM Journal on Control and Optimization
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Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
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International Journal of Systems Science
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Automatica (Journal of IFAC)
A blind approach to the Hammerstein-Wiener model identification
Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
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Automatica (Journal of IFAC)
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Mathematical and Computer Modelling: An International Journal
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Mathematical and Computer Modelling: An International Journal
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Mathematical and Computer Modelling: An International Journal
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Automatica (Journal of IFAC)
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Computers & Mathematics with Applications
Mathematical and Computer Modelling: An International Journal
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Mathematical and Computer Modelling: An International Journal
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Mathematical and Computer Modelling: An International Journal
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This paper considers the identification problems of the Hammerstein nonlinear systems. A projection and a stochastic gradient (SG) identification algorithms are presented for the Hammerstein nonlinear systems by using the gradient search method. Since the projection algorithm is sensitive to noise and the SG algorithm has a slow convergence rate, a Newton recursive and a Newton iterative identification algorithms are derived by using the Newton method (Newton-Raphson method), in order to reduce the sensitivity of the projection algorithm to noise, and to improve convergence rates of the SG algorithm. Furthermore, the performances of these approaches are analyzed and compared using a numerical example, including the parameter estimation errors, the stationarity and convergence rates of parameter estimates and the computational efficiency.