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Discrete Fourier transform
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Table of Contents
Discrete Fourier transform
FT AS AN INVERTIBLE MATRIX
The Nyquist frequency
Laying out a mesh
INVERTIBLE SLOW FT PROGRAM
The simple FT code
SETTING UP THE FAST FOURIER TRANSFORM
Shifted spectrum
TWO-DIMENSIONAL FT
Basics of two-dimensional Fourier transform
Signs in Fourier transforms
Examples of 2-D FT
References
About this document ...
Stanford Exploration Project
10/31/1997
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