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In the discrete Fourier transformation, the Fourier coefficients of a \(2\pi \) -periodic function, which itself is not given, but whose values are known at discrete points, are approximately determined, for example by a sampling of a signal.

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Discrete Fourier Transformation

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  • 发表日期：

    2026年

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  • Christian Karpfinger

摘要

In the discrete Fourier transformation, the Fourier coefficients of a \(2\pi \) -periodic function, which itself is not given, but whose values are known at discrete points, are approximately determined, for example by a sampling of a signal.