Printer Friendly
The Free Dictionary
982,712,059 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Fourier transform

   Also found in: Acronyms, Wikipedia 0.03 sec.

Fourier transform

In mathematical analysis, an integral transform useful in solving certain types of partial differential equations. A function's Fourier transform is derived by integrating the product of the function and a kernel function (an exponential function raised to a negative complex power) over the interval from −∞ to +∞. The Fourier transform of a function g is given by . Such transforms, discovered by Joseph Fourier, are particularly useful in studying problems concerning electrical potential.

(mathematics)Fourier transform - A 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.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
? Mentioned in ? References in periodicals archive
 
A recent publication in a biotech journal acknowledges a Top 10 pharmaceutical company has utilized Digilab's sample preparation and fractionation technologies to expose standard and novel diabetes substrates in a Fourier Transform Mass Spectroscopy experimental paradigm (Yates, et al.
DIGILAB'S PREP SERVICES USED FOR DIABETES RESEARCH by Worldwide Biotech
To remove this long-range variation, the as-acquired data are processed using a band-pass Fast Fourier Transform filter.
Carbon black dispersion measurement via interferometric microscopy by Ruddick, Will / Rubber World
Each Fourier transform F(Q) equals the volume integral [8] of the respective [rho](r)exp(-iQ * r), Q denoting the wave vector transfer.
SUSANS with polarized neutrons by Treimer, Wolfgang / Journal of Research of the National Institute of Standards and Technology
More results
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.