Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2016
Session Number:W1-6
Session:
Number:W1-6-3
Design of Constrained IIR Filters Using PSO
Haruna Aimi, Kenji Suyama ,
pp.771-774
Publication Date:2016/7/10
Online ISSN:2188-5079
Summary:
In this study, IIR filters having a null frequency in a stopband are designed using PSO. A new penalty function is introduced to an objective function in addition to a conventional penalty function which ensures a stability of IIR filters. Then, local minimums are brought to the objective function by adding such a constraint. Therefore, it is important to avoid a local minimum stagnation of PSO. In the proposed method, a particle reallocation method is applied when the stagnation has occurred. The effectiveness of the method is verified through several design examples.