Kaiser-Hamming window and its performance analysis for nonrecursive digital filter design [Kaiser-Hamming penceresi ve yinelemesiz sayisal süzgeç tasarimi için performans analizi]

In this paper,a new window function is proposed for the design of nonrecursive digital filters which have area of usage in many applications of electronics engineering. as the name implies,this window is obtained by the combination of two different windows in literature,known as kaiser and hamming. the proposed window is first analyzed in terms of ripple ratio and mainlobe width,which are known as window spectral parameters. moreover,window spectral comparisons of the proposed window with kaiser and hamming windows are performed. the window simulation results show that the proposed window can provide better ripple ratio for fixed window length and mainlobe width. secondly,the analysis of the proposed window in nonrecursive digital filter design is performed in terms of minimum stopband attenuation and transition width,which are known as filter spectral parameters,and also its comparisons with kaiser,cosh,exponential,and hamming windows are given. filter comparison results show that the filters designed by the proposed window can provide better minimum stopband attenuation than the ones designed by the others for fixed filter length and transition band width. that is,it is concluded that with the proposed window a better filter performance can be exhibited. this conclusion is supported by demonstrating better filtering of a noise in an audio signal with the proposed window.