The FIR Filter Design based on Genetic Algorithm

Abstract

Especially, in the signal and image processing fields of electronics, filters are most often used parts. Also, rapid advances in digital systems have expanded the use of digital filters. Therefore, it is very important to understand and learn the filters and calculation of their coefficients. Thus, in this work, interactive graphical user interface software which can be used for educational purposes and also accessible via the Internet is designed in the MATLAB environment.  In the software, genetic algorithm, which is one of the popular methods in recent years, is used for designing the Finite Impulse Response (FIR) filters. In this program, when the parameters of filter, which will be designed, are entered by the user, the coefficients are obtained from genetic algorithms, and many features of the filter are presented numerically and graphically. Thus, the FIR filter design can easily be carried out for practical or educational purposes using the software. Further, the superiority of the genetic algorithm over the classical design in this field has been shown by comparing the obtained filter coefficients for both methods.