A method for applying the fast Fourier transform to the convolutions arising in the internal field equations of the sinc-basis moment-method diffraction-tomography algorithm is described. Exactly equivalent results are obtained, while reducing the order of those computations from n**5 to n**3 log n for an n multiplied by n reconstruction.
|Original language||English (US)|
|Number of pages||4|
|Journal||Ultrasonics Symposium Proceedings|
|State||Published - Dec 1 1987|
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