Code

Duobianry Signaling-Amplitude & Phase Response

Senthilkumar March 28, 2012 Coded in Scilab

This function is used plot the amplitude spectrum and phase spectrum of duobinary signaling scheme

function [Amplitude_Response,Phase_Response]= Duobinary_Signaling()
//Duobinary Signaling Scheme
//Magnitude and Phase Response
rb =  input('Enter the bit rate=');
Tb =1/rb;  //Bit duration
f = -rb/2:1/100:rb/2;
Amplitude_Response = abs(2*cos(%pi*f.*Tb));
Phase_Response = -(%pi*f.*Tb);
subplot(2,1,1)
a=gca();
a.x_location ="origin";
a.y_location ="origin";
plot(f,Amplitude_Response)
xlabel('Frequency f---->')
ylabel('|H(f)| ----->')
title('Amplitude Repsonse of Duobinary Singaling')
subplot(2,1,2)
a=gca();
a.x_location ="origin";
a.y_location ="origin";
plot(f,Phase_Response)
xlabel('                                           Frequency f---->')
ylabel('                                            <H(f) ----->')
title('Phase Repsonse of Duobinary Singaling')
endfunction
//Result
//-->exec('C:\Users\SENTHILKUMAR\Desktop\Communication_Toolbox\Digital_Communication\New folder\Duobinary_Signaling.sci', -1)
// 
//-->[Amplitude_Response,Phase_Response]= Duobinary_Signaling()
//Enter the bit rate= 8

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