A version of the discrete Fourier transform with nodes on parallelepipedal lattices (Q1395319)
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scientific article; zbMATH DE number 1940682
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A version of the discrete Fourier transform with nodes on parallelepipedal lattices |
scientific article; zbMATH DE number 1940682 |
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A version of the discrete Fourier transform with nodes on parallelepipedal lattices (English)
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1 July 2003
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In this paper a version of the discrete Fourier transform in the multidimensional case is proposed. The method is based on lattice cubature formulas that are exact on trigonometric polynomials. Several numerical experiments have been performed to compare the accuracy of the coefficients of the two-dimensional Fourier transform computed by the standard method and the proposed technique.
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discrete Fourier transform
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cubature formulas
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trigonometric polynomials
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multidimensional case
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convergence
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