Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
This lecture explains how zero padding is used to compute the Discrete Fourier Transform (DFT) numerically, showing that although it may appear to provide more detailed spectral characteristics, it is actually just an illusion. By extending the original data set with zeros, the DFT coefficients do not add any new information, as they are simply finer samples of the original data set.