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TD_IDFFT2

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Draft Latest edits on 
Mar 28, 2024 5:15 PM
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This function simply reverses the 2D Fourier Transform. It takes as its input either a logical matrix containing Fourier coefficients in the form of complex number elements, or, alternatively, in the form of amplitude-phase pair (polar form) elements. The function then runs them through a reverse-transform summation formula, and output the original logical matrix (original 2D array) that was input into the TD_DFFT2 to generate the Fourier coefficients.

Component details

Input ports
  1. Type: DB Session
    Teradata Connection
    Connection to a Teradata Database Instance
  2. Type: Table
    Input
    It takes as its input a logical matrix that has been populated previously with 2D Fourier Transform coefficients. The calculated coefficients may exist in either the form of : complex numbers - real and imaginary pairs; or exist as amplitude-phase pairs.
Output ports
  1. Type: Table
    output of TD_IDFFT2
    output of TD_IDFFT2

Used extensions & nodes

Created with KNIME Analytics Platform version 4.7.0
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    KNIME Base nodesTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.7.0

    knime
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    KNIME DatabaseTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.7.0

    knime
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    KNIME Python IntegrationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.7.0

    knime
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    KNIME Quick FormsTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 4.7.0

    knime

This component does not have nodes, extensions, nested components and related workflows

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