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// Example no 6.8
// To find the first zero-crossing RF bandwidth of rectangular pulse and compare to raised cosine filter pulse
// Page no. 291
clc;
clear all;
// Given data
RectTs=41.06*10^-6; // Symbol period of rectangular pulse
cosineTs=41.06*10^-6; // Symbol period of cosine filter pulse
alpha=0.35; // Rolloff factor of cosine filter pulse
// To find the first zero-crossing RF bandwidth of rectangular pulse
B1=2/RectTs; // The first zero-crossing RF bandwidth of rectangular pulse
// The first zero-crossing RF bandwidth of cosine filter pulse
B2=(1/cosineTs)*(1+alpha); // The first zero-crossing RF bandwidth of cosine filter pulse
// Displaying the result in command window
printf('\n The first zero-crossing RF bandwidth of rectangular pulse = %0.2f kHz',B1*10^-3);
printf('\n The first zero-crossing RF bandwidth of cosine filter pulse = %0.2f kHz',B2*10^-3);
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