The FIR Filter Design based on Genetic Algorithm

Abstract

Especially, in the signal and image processing fieldsof electronics, filters are most often used parts. Also, rapidadvances in digital systems have expanded the use of digitalfilters. Therefore, it is very important to understand and learnthe filters and calculation of their coefficients. Thus, in this work,interactive graphical user interface software which can be usedfor educational purposes and also accessible via the Internet isdesigned in the MATLAB environment. In the software, geneticalgorithm, which is one of the popular methods in recent years, isused for designing the Finite Impulse Response (FIR) filters. Inthis program, when the parameters of filter, which will bedesigned, are entered by the user, the coefficients are obtainedfrom genetic algorithms, and many features of the filter arepresented numerically and graphically. Thus, the FIR filterdesign can easily be carried out for practical or educationalpurposes using the software. Further, the superiority of thegenetic algorithm over the classical design in this field has beenshown by comparing the obtained filter coefficients for bothmethods.