We studied Fast Fourier Transform and Inverse Fast Fourier Transform by implementing it in C language. We took an input signal of length 4. Fast Fourier Transform is preferred over Discrete Fourier Transform as it has less number of multiplications and additions for the same length of the input signal. So FFT is Faster than DFT.
FFT : https://drive.google.com/open?id=0BwzFGc0wvjNvbWVlZkhlWUJfLXM
IFFT : https://drive.google.com/open?id=0BwzFGc0wvjNvNC1CQ3l2RmdGSlk
FFT : https://drive.google.com/open?id=0BwzFGc0wvjNvbWVlZkhlWUJfLXM
IFFT : https://drive.google.com/open?id=0BwzFGc0wvjNvNC1CQ3l2RmdGSlk
FFT uses parallel processing.
ReplyDeleteIt seems FFT is very much preferable over DFT.
ReplyDeleteYes FFT is always preferred.
ReplyDelete