TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

In the commonly used segment Fourier transform method for rainbow hologram reconstruction, the computation of 2D [two dimensional] Fourier transform on each hologram segment is very time consuming.  2, record 1, English, - hologram%20segment

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

L'enregistrement holographique utilise la propriété de réduction des données caractéristique des représentations interférentielles et exprimées mathématiquement par la méthode des transformations de Fourier.  2, record 2, French, - m%C3%A9thode%20des%20transformations%20de%20Fourier

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Fourier transform ion cyclotron resonance mass spectrometry … determines the [mass-to-charge] ratio of ions by measuring the cyclotron frequency of the ions in a fixed magnetic field. The method differs significantly from other mass spectrometry techniques in that the ions are indirectly detected by the measurement of the cyclotron(rotational) frequency that they produce as they rotate in a magnetic field.  1, record 3, English, - Fourier%20transform%20ion%20cyclotron%20resonance%20mass%20spectrometry

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The interest of a ground based Slit Aperture Telescope(SAT) which operates with a long thin pupil has been underlined for applications in the field of high angular resolution observations by speckle-interferometric techniques. The SAT lies halfway between the Michelson stellar interferometer and the standard telescope with circular aperture. The authors present the principle of an image processing algorithm which could be used associated with a space-SAT for astronomical image reconstruction. A full coverage of the two dimensional Fourier plane of the astronomical object can be obtained by rotating the SAT around its optical axis. The method of image reconstruction is analogous to those used in computerized tomography and uses Fast Fourier Transform algorithm. The interest of the use of a rotating space-SAT among synthetic apertures is its capability of giving a reconstructed image of the astronomical object simultaneously in several light wavelengths, each colored image being comparable with the others for fruitful astrophysical applications.  3, record 4, English, - slit%20aperture%20telescope

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Le télescope à pupille fente fournit des images unidimensionnelles et opère en synthèse d'ouverture. En l'absence de turbulence atmosphérique, l'image focale fournie par un télescope à pupille fente est quasiment une projection unidimensionnelle de l'objet observé. Après une rotation complète autour de son axe optique, on obtient un ensemble de projections de l'objet observé qui n'est autre que la transformée de Radon de l'objet.  1, record 4, French, - t%C3%A9lescope%20%C3%A0%20pupille%20fente

Record 4,  Textual support,  Spanish