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k / Amplitude Modulation

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digital-communication

Revision 9e8283577da3ba9f04a80ef97213341d56f51df3

amplitude_modulation.m · 542 B · Mathematica Raw

1	clc;
2	clear all;
3	close all;
4
5	fs = 1000;
6	t = 0:0.0001:0.1;
7
8	Am = 1;
9	Ac = 2;
10
11	fm = 50;
12	fc = 500;
13
14	Ka = 0.5;
15
16	% Modulating signal
17	msg = Am * cos(2 * pi * fm * t);
18
19	% Carrier signal
20	carr = Ac * cos(2 * pi * fc * t);
21
22	% AM Wave
23	amw = Ac * (Ka * msg) .* cos(2 * pi * fc * t);
24
25	% Plotting
26	subplot(3,1,1);
27	plot(t, msg);
28	xlabel('t');
29	ylabel('m(t)');
30	title('Modulating Signal');
31
32	subplot(3,1,2);
33	plot(t, carr);
34	xlabel('t');
35	ylabel('c(t)');
36	title('Carrier Signal');
37
38	subplot(3,1,3);
39	plot(t, amw);
40	xlabel('t');
41	ylabel('amw(t)');
42	title('Modulated Signal');