TD_IDFFT2

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.

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