In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced samples of a function into a same-length sequence of...
71 KB (11,005 words) - 06:16, 12 July 2024
transform Discrete Fourier transform *DFT matrix Fast Fourier transform Fourier integral operator Fourier inversion theorem Fourier multiplier Fourier series...
177 KB (21,040 words) - 19:32, 9 July 2024
operations. The decomposition process itself is called a Fourier transformation. Its output, the Fourier transform, is often given a more specific name, which...
37 KB (4,733 words) - 18:28, 14 May 2024
A Fast Fourier Transform (FFT) is an algorithm that computes the Discrete Fourier Transform (DFT) of a sequence, or its inverse (IDFT). Fourier analysis...
63 KB (7,362 words) - 06:04, 12 July 2024
Laplace transform (redirect from Fourier–Laplace transform)
transforms, most notably the Fourier transform and the Mellin transform. Formally, the Laplace transform is converted into a Fourier transform by the substitution...
75 KB (9,288 words) - 15:11, 28 June 2024
computing, the quantum Fourier transform (QFT) is a linear transformation on quantum bits, and is the quantum analogue of the discrete Fourier transform. The...
20 KB (3,214 words) - 18:35, 2 July 2024
fractional Fourier transform (FRFT) is a family of linear transformations generalizing the Fourier transform. It can be thought of as the Fourier transform...
25 KB (3,733 words) - 19:20, 27 April 2024
resulting in lower noise. The result of Fourier transformation is a spectrum of the signal at a series of discrete wavelengths. The range of wavelengths...
37 KB (4,774 words) - 15:30, 26 June 2024
Z-transform (redirect from Z-transformation)
the continuous-time Fourier transform is evaluated on the s-domain's vertical axis (the imaginary axis), the discrete-time Fourier transform is evaluated...
38 KB (4,621 words) - 11:36, 3 June 2024
sampled. As with other wavelet transforms, a key advantage it has over Fourier transforms is temporal resolution: it captures both frequency and location...
32 KB (4,511 words) - 18:19, 12 July 2024