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Model structure selection for discrete-time systems using memetic algorithm

Ahmad, Robiah and Jamaluddin, Hishamuddin and Hussain, Mohd. Azlan (2007) Model structure selection for discrete-time systems using memetic algorithm. In: Recent Trends In Systems And Control. Penerbit UTM , Johor, pp. 149-186. ISBN 978-983-52-0545-3

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System identification involves several steps: data acquisition, model structure selection, parameter estimation and model validation (Ljung, 1999) and research on system identification has been widely reviewed (Astrom and Eykhoff, 1971; Billings, 1980; Haber and Keviczky, 1978). One of the components in system identification is model structure selection. In model structure selection based on regression model, expanding the system input and output lags and non-linearity functions involve excessive number of candidate terms. There are several ways to determine which terms are the significant ones to be included in the model such as stepwise regression (Billings and Voon, 1986), f-test (Söderstrom and Stoica, 1989) and orthogonal least squares (OLS) method (Billings et al., 1988). However, these algorithms require a lot of computation especially when involving large number of possible candidate terms.

Item Type:Book Section
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:13568
Deposited By: Liza Porijo
Deposited On:10 Aug 2011 01:12
Last Modified:10 Aug 2011 01:12

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