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首页> 外文期刊>Asian Journal of Control: Affiliated with ACPA, the Asian Control Professors Association >Parameter learning for the nonlinear system described by Hammerstein model with output disturbance
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Parameter learning for the nonlinear system described by Hammerstein model with output disturbance

机译：Parameter learning for the nonlinear system described by Hammerstein model with output disturbance

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摘要

A novel parameter learning scheme using multi-signal processing is developed that aims at estimating parameters of the Hammerstein nonlinear model with output disturbance in this paper. The Hammerstein nonlinear model consists of a static nonlinear block and a dynamic linear block, and the multi-signals are devised to estimate separately the nonlinear block parameters and the linear block parameters; the parameter estimation procedure is greatly simplified. Firstly, in view of the input-output data of separable signals, the linear block parameters are computed through correlation analysis method, thereby the influence of output noise is effectively handled. In addition, model error probability density function technology is employed to estimate the nonlinear block parameters with the help of measurable input-output data of random signals, which not only controls the space state distribution of model error but also makes error distribution tends to normal distribution. The simulation results demonstrate that the developed approach obtains high learning accuracy and small modeling error, which verifies the effectiveness of the developed approach.

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