Fourier transform


Fourier transform
(FT)
   A mathematical operation which converts a function of one independent variable to one of a different independent variable. In FT–IR spectroscopy, the Fourier transform converts a time function (the interferogram) to a frequency function (the infrared absorption spectrum). Spectral data are collected through the use of an interferometer, which replaces the monochrometer found in the dispersive infrared spectrometer.

Forensic science glossary. . 2012.

Look at other dictionaries:

  • Fourier transform — Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms The Fourier transform is a mathematical operation that decomposes a function into its constituent… …   Wikipedia

  • Fourier transform — Fourier transformacija statusas T sritis automatika atitikmenys: angl. Fourier transform; Fourier transformation vok. Fourier Transformation, f rus. преобразование Фурье, n pranc. transformation de Fourier, f; transformée de Fourier, f ryšiai:… …   Automatikos terminų žodynas

  • Fourier transform — Math. 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. [1920 25; see FOURIER ANALYSIS] * * *… …   Universalium

  • Fourier transform — Furjė atvaizdis statusas T sritis fizika atitikmenys: angl. Fourier transform vok. Fourier Transformierte, f rus. образ Фурье, m; трансформанта Фурье, f; Фурье образ, m pranc. image de Fourier, f; transformée de Fourier, f; transfouriée, f …   Fizikos terminų žodynas

  • Fourier Transform IR — Die Fourier Transformations IR Spektroskopie (FTIR) oder Fourier Transformations Infrarotspektroskopie ist eine besondere Variante der Infrarotspektroskopie. Über Fourier Transformation werden aus den mit Hilfe eines Interferometers, z. B. dem… …   Deutsch Wikipedia

  • fourier transform — noun also fourier transformation ˈfu̇rēˌā , fu̇rˈyā Usage: usually capitalized F Etymology: after Baron Jean Baptiste Joseph Fourier died 1830 French geometrician and physicist : any of various functions (as F(u)) that under suitable conditions… …   Useful english dictionary

  • Fourier transform — noun Date: 1923 any of various functions (as F(u)) that under suitable conditions can be obtained from given functions (as f(x)) by multiplying by eiux and integrating over all values of x and that in scientific instrumentation describe the… …   New Collegiate Dictionary

  • Fourier transform — noun a transform, applied to a function, used to determine the functions frequency composition (temporal, spatial or otherwise); it has many scientific and industrial applications, especially in signal processing …   Wiktionary

  • Fourier transform — noun Mathematics a function derived from a given non periodic function and representing it as a series of sinusoidal functions …   English new terms dictionary

  • Fourier transform spectroscopy — is a measurement technique whereby spectra are collected based on measurements of the temporal coherence of a radiative source, using time domain measurements of the electromagnetic radiation or other type of radiation.It can be applied to a… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.