3D FFT

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3D FFT

(3D Fast Fourier Transform) Applying Fourier algorithms to 3-dimensional data. See FFT.
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References in periodicals archive ?
Convolve every group of 3-D reflectivity map with the processed point using 3-D FFT to obtain E([k.sub.x], [k.sub.y], [k.sub.z], [r.sub.S]).