文章基本信息

标题：Identification of Wiener Models in the Presence of ARIMA Process Noise
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作者：Ibrahim Aljamaan ; David T. Westwick ; Michael Foley 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：7
页码：1008-1013
DOI：10.1016/j.ifacol.2016.07.334
语种：English
出版社：Elsevier
摘要：In this paper, a Prediction Error based algorithm is developed for the identification of a Wiener system, a linear dynamic subsystem followed by a static non-linearity, in the presence of a non-stationary disturbance added before the static non-linearity. This structure represents a non-stationary process disturbance, as is common in chemical process control applications. In the proposed method, the disturbance part is restructured to be stationary by differencing the input signal and implicit differencing of the unmeasured intermediate signal. First, an approximate but linear in the variables model is fitted, and used to construct an initial estimate of a parametric system model. This is then refined using a quasi-Newton optimization. Finally, Monte-Carlo simulation is used demonstrate the performance of the algorithm.
关键词：Wiener modelPrediction Error MethodNonlinear System IdentificationARIMA