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Reference Data for Engineers, 9th Edition by Wendy M. Middleton, Mac E. Van Valkenburg

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7 Fourier Waveform Analysis

Revised byDavid C. Munson, Jr.

FOURIER TRANSFORM OF A FUNCTION

The Fourier transform, F, of function f is defined by the integral (where x and y are real variables)

image

provided this integral exists.

A sufficient, but not necessary, existence condition is that f be absolutely integrable; that is

image

An important ...

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