Question

Can somebody help me with my matlab code? I am plotting the POWER SPECTRAL DENSITY OF Manchester, Polar, UNIPOLAR, and BIPOLAR.

It wont run. The error I am getting is "incorrect dimensions for matrix multiplication. Check that the number
of columns in the first matrix matches the number of rows in the
second matrix. To perform element wise multiplication, use '.*'. "

clc;
clear all;
%Declaration of variables
bandwidth = 1;
total_bandwidth = 1/bandwidth;
f = 0:.05*bandwidth:2*total_bandwidth;
x=f*total_bandwidth;

%Manchester
Power = total_bandwidth*(sin(x/2).*exp(2)*(sin(pi*x/2))*exp(2))
figure(1)
plot(f,Power,'r');
xlabel('Frequency');
title('PSD for Manchester Signal')
ylabel('Power Spectral Density')

%Uni-Polar Signal
P1 = .5*total_bandwidth*(sinc(x).*sinc(x))+.5*dirac(f);
figure(2)
plot(f,P1,'o');
xlabel('Frequency');
ylabel('Power Spectral Density');
title('PSD of Unipolar Signal');

%Polar Signal

P=total_bandwidth*sinc(x)
figure(3)
plot(f,P,'g')
grid on
box on
xlabel('Frequency')
ylabel('Power Spectral Densitiy')
title('PSD for Polar Signal')

%PSD of Bipolar Signal
P2 = total_bandwidth*(sinc(x/2).exp(2)*(sin(pi*x)))
hold on
figure(4)
plot(f,P2,'b');
xlabel('Frequency')
ylabel('Power Spectral Density')
title('PSD of Bipolar Signal')

Answer 1

I have corrected all the syntax error in the code. I haven't gone through the whole code for different coding schemes as I have least knowledge about them and their PSD

Thank You.

Thank you