WHAT IS Matlab code for constellation diagram for fsk modulation?

Answer 1

To create a constellation diagram for Frequency Shift Keying (FSK) modulation in MATLAB, you can use the following code snippet:

% Parameters
fs = 1000;       % Sampling frequency
T = 1;           % Duration of the signal
t = 0:1/fs:T-1/fs;  % Time vector
f1 = 1;         % Frequency for '0'
f2 = 2;         % Frequency for '1'

% FSK signal generation
data = [0 1 0 1]; % Example binary data
signal = []; 
for bit = data
    if bit == 0
        signal = [signal sin(2*pi*f1*t)];
    else
        signal = [signal sin(2*pi*f2*t)];
    end
end

% Constellation diagram
scatter(real(signal), imag(signal));
title('Constellation Diagram for FSK Modulation');
xlabel('In-Phase');
ylabel('Quadrature');
grid on;

This code generates an FSK signal based on the binary input data and then plots the constellation points in a scatter plot. Adjust the parameters as needed for your specific requirements.