Electric Machinery and Power System Fundamentals
1st Edition
ISBN: 9780072291353
Author: Stephen J. Chapman, Stepehn J. Chapman
Publisher: McGraw-Hill Companies, The
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help on questions about singals and systems?
Don't use ai to answer I will report you answer
I have this code in matlab:
clc;
n=0:8; %20 harmonic indices
jn=besselj(n,5);% 5 is the modulation index
jnn=abs(jn);
jn1 = 20.*log10(jnn*0.5);
fc=1e+6; %carrier frequency
fm=10e+3; %message frequency
frq1 = (fc+n.*fm)*1e-06;
frq2 = (fc-n.*fm)*1e-06;
frequencies = [frq2,frq1]; %Lower and upper side
magnitudes = [jn1,jn1]; %Magnitude of Jn corresponding to the frequencies
% Plot
figure;
stem(frequencies, magnitudes, 'filled'); % Stem plot for spectrum visualization
title('Magnitude Spectrum of FM Signal');
xlabel('Frequency (MHz)');
ylabel('Magnitude');
grid on;
I am getting the lines opposite (the line should be traced from bottom to top not from top to bottom) as shown in the picture. How can I fix this?
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