Discrete Fourier transform (DFT) is the most widely used method for determining the frequency spectra of digital signals. In this paper, a 2D sliding DFT (2D SDFT) algorithm is proposed for fast ...

The library provides a built-in FFT engine and supports various FFT backends : FFTW, Intel oneMKL, Nvidia cuFFT. The FFT engine selected during compilation is available through the variable ...

This paper presents a 2D transposition of the Hilbert-Huang Transform (HHT), an empirical data analysis method designed for studying instantaneous amplitudes and phases of non-stationary data. The ...