Inversion formula for the windowed Fourier transform (Q2888906)
From MaRDI portal
| This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: Inversion formula for the windowed Fourier transform |
scientific article; zbMATH DE number 6042723
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Inversion formula for the windowed Fourier transform |
scientific article; zbMATH DE number 6042723 |
Statements
Inversion formula for the windowed Fourier transform (English)
0 references
4 June 2012
0 references
Fourier transforms
0 references
windowed Fourier transforms
0 references
inversion formula
0 references
The author shows that the integral NEWLINE\[NEWLINE\frac{1}{2\pi\overline{g(0)}}\int_{\mathbb{R}}{(F_{g}f)(x,w)e^{ixw}dw}NEWLINE\]NEWLINE is convergent in \(L^{p}(\mathbb{R})\) for all \(1<p<\infty\). He also proves that the integral involved in the formula is convergent almost everywhere on \(\mathbb{R}\) for all \(1<p<\infty\), by using the Carleson-Hunt theorem. The following section of the paper presents an inversion formula for recovering a function from its window Fourier transform. The remarks, proofs and various justifications given are useful for one who desires to work on this field.
0 references