what are the applications of Fourier transform in modulation ? What are modulation schemes that use Fourier transform? I guess, FSK & PSK are related to Fourier transform since it both have frequency and phase in their names respectively.

  • 2
    $\begingroup$ PSK and FSK have nothing to do with Fourier Transform. $\endgroup$
    – John
    Commented Mar 29, 2014 at 11:34

1 Answer 1


OFDM is usually modulated by using an IFFT (or FFT), using the DFT basis vectors for the multi-carrier orthogonality.


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