3 ms·
> This is actually the exact same number of numbers as in the time-domain series. In a way, it's twice as many, since they have both real and imaginary compone
by taejo 13y ago
> This is actually the exact same number of numbers as in the time-domain series.
In a way, it's twice as many, since they have both real and imaginary components.
- kkjkok 13y agoNope - the amount of numbers is in fact identical. The discrete Fourier transform has redundant information in bins above NFFT/2 (where NFFT is the size of the transform/number of samples in the signal) for purely real valued input. This means the "number of numbers" is the same - NFFT/2 bins of necessary complex values after transformation, versus NFFT real values in the original series.
- taejo 13y agoAh yeah, forgot about that. Thank you.