Ferenc Plesznik’s research while affiliated with Budapest University of Technology and Economics and other places

In the field of digital signal analysis and processing, the ubiquitous domain transformation is the discrete Fourier transform (DFT), which converts the signal of interest within a limited time window from discrete time to the discrete frequency domain. The active use in real-time or quasi-real-time applications has been made possible by a family of fast implementations of the DFT, called fast Fourier transform (FFT) algorithms.