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Seeker Optimization Algorithm for Digital IIR Filter Design

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3 Author(s)
Chaohua Dai ; Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China ; Weirong Chen ; Yunfang Zhu

Since the error surface of digital infinite-impulse-response (IIR) filters is generally nonlinear and multimodal, global optimization techniques are required in order to avoid local minima. In this paper, a seeker-optimization-algorithm (SOA)-based evolutionary method is proposed for digital IIR filter design. SOA is based on the concept of simulating the act of human searching in which the search direction is based on the empirical gradient by evaluating the response to the position changes and the step length is based on uncertainty reasoning by using a simple fuzzy rule. The algorithm's performance is studied with comparison of three versions of differential evolution algorithms, four versions of particle swarm optimization algorithms, and genetic algorithm. The simulation results show that SOA is superior or comparable to the other algorithms for the employed examples and can be efficiently used for IIR filter design.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:57 ,  Issue: 5 )

Date of Publication:

May 2010

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