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System identification and linearisation using genetic algorithms with simulated annealing

Tan, K.C., Li, Y., Murray-Smith, D., and Sharman, K.C. (1995) System identification and linearisation using genetic algorithms with simulated annealing. In: Genetic Algorithms in Engineering Systems: Innovations and Applications (GALESIA 95), 12-14 Sep 1995, Sheffield, UK.

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Abstract

This paper develops high performance system identification and linearisation techniques, using a genetic algorithm. The algorithm is fine tuned by simulated annealing, which yelds a faster convergence and a more accurate search. This global search technique is used to identify the parameters of a system described by an ARMAX model in the presence of white noise and to approximate a nonlinear multivariable system by a linear time-invariant state-space model. Results obtained show that simple step inputs can be used for effective system identification and linearisation with much higher performance than is possible by conventional means.

Item Type:Conference Proceedings
Keywords:System identification, linearisation, genetic algorithm, simulated annealing, optimisation
Status:Published
Refereed:Yes
Glasgow Author(s):Murray-Smith, Prof David and Li, Prof Yun
Authors: Tan, K.C., Li, Y., Murray-Smith, D., and Sharman, K.C.
Subjects:Q Science > QA Mathematics > QA76 Computer software
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy

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