Discrete Fourier Transform (DFT) Archives

The Beauty of Symmetry in Fourier Transform

In 1978, Fred Harris was a relatively unknown faculty member at the San Diego State University when he published his

One question I am frequently asked is regarding the definition of Fourier Transform. A continuous-time Fourier Transform for time domain

One of the most common questions DSP beginners have is how to generate the signals (particularly, sinusoids) and view their

We have discussed before what a Discrete Fourier Transform (DFT) is and how to find the DFT of some commonly

Children usually ask questions like “How many hours have passed?” And they have no idea about the start time to