How to fft binary amplitude shift keying?

I make bask in time domain. But I don't know do fft of bask. I wanna know the code

Answer 1

[Priyank Pandey]

Hi,

To perform the FFT of a BASK signal in the time domain in MATLAB, you can follow these steps:

1.Use the fft function in MATLAB to compute the FFT of the BASK signal.

N = length(BASK);

fft_signal = fft(BASK, N);

The output of the fft function will be a complex-valued array representing the frequency spectrum of the BASK signal.

2. Plot the frequency spectrum: To visualize the frequency spectrum, you can plot the magnitude or power spectrum using the plot function.

f = (0:N-1) / N; % Frequency vector

P = abs(fft_signal); % Magnitude spectrum

plot(f, P);

xlabel('Frequency');

ylabel('Magnitude');

This will plot the magnitude spectrum of the BASK signal, showing the amplitudes at different frequencies

To know more about fft function you can refer to the following link:

Fast Fourier transform - MATLAB fft (mathworks.com)

I hope this helps.

Regards

Priyank