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//EXAMPLE 10.6
//Order estimation using Dolph-Cebyshev window
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 = ')
//Order of the filter
N = ((2.056*as) - 16.4)/(2.285*Bw);
disp(ceil(N),'Order of the filter,N = ')
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