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version (7.66 KB) by Carlos Adrian Vargas Aguilera
Inverse Fourier complex transform of a origin-symetrical complex transform (result 2D real field).


Updated 04 May 2016

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[Z,X,Y] = INVERSEFOURIERTRANSFORM2(RC,IC,dFx,dFy) Gives the real 2D field Z(X,Y) from the components of the complex 2D Fourier transform, Cz(Fx,Fy) = RC(Fx,Fy) + i*IC(Fx,Fy) taken at dFx,dFy sampling frequency interval (optional), via IFFT2.
The Cz are symmetrical with the origin and the spatial 2D Fourier frequencies (Fx,Fy) must have the origin at the center. Fy must increase upwards contrary to the row index.

The user can see how to get the same result using IFFT twice, or via complex exponentials (slower). This is the goal of the program.

The program comes with the example at the screenshot.

See also my inversefouriertransform.m here at FEx.

Cite As

Carlos Adrian Vargas Aguilera (2022). InverseFourierTransform2.m (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14SP3
Compatible with any release
Platform Compatibility
Windows macOS Linux

Inspired by: InverseFourierTransform.m

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