Fourier transform
Fourier transform
noun Mathematics.
a mapping of a function, as a signal, that is defined in one domain, as space or time, into another domain, as wavelength or frequency, where the function is represented in terms of sines and cosines.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To fourier transform
Collins
World English Dictionary
| Fourier transform | |
| —n | |
| an integral transform, used in many branches of science, of the form F(x) = [1/√(2π)]ʃeixyf(y)dy, where the limits of integration are from --∞ to +∞ and the function F is the transform of the function f | |
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Fourier transform
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FOLDOC
Computing Dictionary
Fourier transform definition
mathematicsA technique for expressing a waveform as a weighted sum of sines and cosines.
Computers generally rely on the version known as discrete Fourier transform.
Named after J. B. Joseph Fourier (1768 -- 1830).
See also wavelet, discrete cosine transform.
(1997-03-9)
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