Collective Animal Behaviour Based Optimization Algorithm for IIR System Identification Problem

P. Upadhyay, R. Kar, D. Mandal and S. P. Ghoshal
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P. Upadhyay: Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India
R. Kar: Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India
D. Mandal: Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India
S. P. Ghoshal: Department of Electrical Engineering, National Institute of Technology, Durgapur, India

International Journal of Swarm Intelligence Research (IJSIR), 2014, vol. 5, issue 1, 1-35

Abstract: In this paper a novel optimization technique which is developed on mimicking the collective animal behaviour (CAB) is applied to the infinite impulse response (IIR) system identification problem. Functionality of CAB is governed by occupying the best position of an animal according to its dominance in the group. Enrichment of CAB with the features of randomness, stochastic and heuristic search nature has made the algorithm a suitable tool for finding the global optimal solution. The proposed CAB has alleviated from the defects of premature convergence and stagnation, shown by real coded genetic algorithm (RGA), particle swarm optimization (PSO) and differential evolution (DE) in the present system identification problem. The simulation results obtained for some well known benchmark examples justify the efficacy of the proposed system identification approach using CAB over RGA, PSO and DE in terms of convergence speed, unknown plant coefficients and mean square error (MSE) values produced for IIR system models of both the same order and reduced order.

Date: 2014
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