Fourier Transform

Why Are Complex Numbers in the Discrete Fourier Transform?

by Ben Emmett
June 8, 2025June 8, 2025

Why does the Fourier Transform generate complex numbers in the frequency domain? The Discrete Fourier Transform (DFT) of a signal x (lower case) generates a… Read More »Why Are Complex Numbers in the Discrete Fourier Transform?

Discrete Fourier Transform Frequency Bins

by user
November 9, 2021June 10, 2025

Notes about calculating the frequency for each DFT bin.