Digital IIR Filter Design Using Genetic Algorithm and CCGA Method

The Cooperative Coevolutionary Genetic Algorithm is an optimization method which can be used to design digital filter with infinite impulse response (IIR). In addition to magnitude response, this method calculates linear approximation of phase response in pass band and filter lowest order simultaneously. This method finds good and sometimes different solution instead of one best solution. However, designing a filter is strongly dependent on its functional application. The proposed method in this paper is based on CCGA advantages and helps designing IIR filter considering applied usage such as phase response optimization and magnitude response optimization.