Brief paper: A swarm intelligence approach to the synthesis of two-dimensional IIR filters

Authors:
Swagatam Das;Amit Konar
Affiliations:
Department of Electronics and Telecommunication Engineering, Jadavpur, University, Raja S.C. Mullick Road, Kolkata 700032, India;Department of Electronics and Telecommunication Engineering, Jadavpur, University, Raja S.C. Mullick Road, Kolkata 700032, India
Venue:
Engineering Applications of Artificial Intelligence
Year:
2007

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Abstract

The concept of particle swarms, although initially introduced for simulating human social behaviors, has become very popular these days as an efficient means for intelligent search and optimization. The particle swarm optimization (PSO), as it is called now, does not require any gradient information of the function to be optimized, uses only primitive mathematical operators and is conceptually very simple. This paper investigates a novel approach to the designing of two-dimensional zero phase infinite impulse response (IIR) digital filters using the PSO algorithm. The design task is reformulated as a constrained minimization problem and is solved by a modified PSO algorithm. Numerical results are presented. The paper also demonstrates the superiority of the proposed design method by comparing it with two recently published filter design methods and two other state of the art optimization techniques.