digital-communication

k / Binary Phase Shift Keying

Last active 5 months ago digital-communication

0 0 1

1	clc;
2	clear all;
3	close all;
4	A = 5;
5	t = 0:0.001:1;
6	F1 = input ('carrier signal frequency');
7	F2 = input ('message signal frequency');
8	x = A.*sin(2*pi*F1*t);
9	u = square(2*pi*F2*t);
10	y = x.*u; subplot(3,1,1);

k / Amplitude Modulation

Last active 5 months ago digital-communication

0 0 1

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;

k / Frequency Modulation

Last active 5 months ago digital-communication

0 0 1

1	clc;
2	clear;
3	close all;
4
5	% Parameters
6	fs = 1000; % Sampling frequency
7	t = 0:1/fs:1; % Time vector
8	fm = input("Enter message frequency: "); % Message frequency
9	fc = input("Enter carrier frequency: "); % Carrier frequency
10	Ac = input("Enter carrier amplitude: "); % Carrier amplitude

k / Phase Shift Keying

Last active 5 months ago digital-communication

0 0 1

1	clc;
2	clear all;
3	A=5;
4	t=0:0.001:1;
5	f1=input("Carrier signal frequency: ");
6	f2=input("Message signal frequency: ");
7
8	x1 = A*sin(2*pi*f1*t);
9	u = square(2*pi*f2*t);

k / Amplitude Shift Keying

Last active 5 months ago digital-communication

0 0 1

1	clc;
2	clear all;
3	A=5;
4	t=0:0.001:1;
5	f1=input("Carrier signal frequency: ");
6	f2=input("Message signal frequency: ");
7
8	x1 = A*sin(2*pi*f1*t);
9	u = A/2 .* square(2*pi*f2*t) + (A/2);