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//EXAMPLE 10.6
//FIlter length for window -based design
clear;
clc;
wp=0.3*%pi;//rad/sec
ws=0.5*%pi;//rad/sec
as=40;//dB
wc=(wp+ws)/2;//cutoff frequency
Bw=ws-wp;
disp(Bw,'Normalized transition bandwidth is = ')
//Hann window
M1=3.11*%pi/Bw;
disp(M1,'Value of M = ')
//Hamming window
M2=3.32*%pi/Bw;
disp(M2,'Value of M = ')
//Blackman window
M3=5.56*%pi/Bw;
disp(M3,'Value of M = ')
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