AM, FM Familiarization: my_fmmod(m, A , B , C , fc , fs) - File Exchange

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Highlights from
AM, FM Familiarization

my_ammod(m, K, A, fc, fs) here i want to show the method of generating AM signal, here m is the
my_fmdemod(s, fc, fs) now i am going to make a function to demodulate the FM signal, here s is
my_fmmod(m, A , B , C , fc , ... here i am going to show the generation of FM signal by the my_fmmod
test_am() this m file demonstrate the testing of AM modulation demod signal, now i
test_file_am() this is the test file for modulating and demodulatin the music signal of
test_file_fm() by this file i have to take a music file of duration 20 sec, and perform
test_fm() now i am going to test the my_fmmod file by making modulating, and carrier
tfplot(s, fs, name, plottitle) TFPLOT Time and frequency plot
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from AM, FM Familiarization by Santosh Shah
keep all files in a folder and run any of the test files.

my_fmmod(m, A , B , C , fc , fs)

function s= my_fmmod(m, A , B , C , fc , fs)

%here i am going to show the generation of FM signal by the my_fmmod
%function. here m is the modulating signal, A is the amplitude of carrier
%signal, B is the modulation factor, C is the some other constant for
%phase, fc is the carrier frequency , and fs is the sampling frequency. the
%basic principle to modulate the signal as follows
% s(t) = A*cos(2*pi*fc*t + B int m(t)dt + C)

%santosh shah, The LNM IIT Jaipur (India)(santosh.jnt@gmail.com) 22/04/07

% finding the time vector from the messege vector
t= linspace(0, (length(m)-1)/fs, length(m));

%processs for computing FM sognal
%first i have to compute the integration part so..
s_int = cumsum(m) / fs;

%now complete FM signal
s = A*cos(2*pi*fc*t + B*s_int + C);

end

Highlights from AM, FM Familiarization

Highlights from
AM, FM Familiarization