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7:28
YouTube
Adam Panagos
The Fast Fourier Transform (FFT) - 03 - Derivation Part 1
http://adampanagos.org We begin deriving the FFT algorithm. We introduce the "W" notation frequently defined as W_N0 = exp(-j2pi/N0). The key step in this part of the derivation is being able to write a single DFT coefficient as a summation of two other DFT coefficients, i.e. Fr = Gr + W_{N0}^{r}Gr. If you enjoyed my videos please "Like
5.1K views
Jul 1, 2014
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