In this experiment we used a particular windowing function based upon the attenuation in stop band.There are different types of windowing functions Rectangular ,Bartlett ,Hamming ,Hanning, and Blackman.The specifications of As,Ap, stop band frequency, passband frequency and sampling frequency are taken from the user.It is observed that as the order of the filter increases the number of lobes in frequency response increase.The attenuation depends upon the type of window used.
Informative!!!
ReplyDeleteWindow functions can be changed according to the requirements.
ReplyDeleteBlackman window function is more efficient.
ReplyDeleteIt has the largest value for As
DeleteRectangular window function has lowest value of As.
DeleteAttenuation of the side lobes is an important factor.
ReplyDeleteHanning gives a good response too
ReplyDeleteWindow function is selected according to the value of As
ReplyDelete