TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

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In a long synthetic aperture (array), SAR focusing involves the removal and compensation of path length differences from the antenna to the target on the ground.  2, fiche 1, Anglais, - SAR%20focusing

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The main advantage of a focused synthetic aperture is that it increases its array length over those radar signals that can be processed, and thus increases potential SAR resolution at any range. SAR focusing is a necessary process when the length of a synthetic array is a significant fraction of the range to ground being imaged, as the lines-of-sight(range) from a particular point on the ground to each individual element of the array differ in distance. These range differences, or path length differences, of the radar signals can affect image quality. In a focused SAR image these phase errors can be compensated for by applying a phase correction to the return signal at each synthetic aperture element. Focusing errors may be introduced by unknown or uncorrected platform motion. In an unfocused SAR image, the usable synthetic aperture length is quite limited.  2, fiche 1, Anglais, - SAR%20focusing

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SAR focusing: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, fiche 1, Anglais, - SAR%20focusing

Fiche 1,  Justifications,  Français

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Élimination et compensation des différences de trajectoires entre l'antenne et la cible au sol.  2, fiche 1, Français, - focalisation%20SAR

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focalisation SAR : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, fiche 1, Français, - focalisation%20SAR

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

The Very High Resolution Spectrometer. The 6. 65 m off-plane Eagle spectrometer connected to the Synchrotron Ultraviolet Radiation Facility(SURF II) electron storage ring at the National Institute of Standards and Technology(NIST) is one of the two very high resolution spectrometers(VHRS) in the world that combine a synchrotron radiation light source with photoelectric detection of vacuum ultraviolet spectra. Spectra are obtained over a usable range from approximately 20 nm to 200 nm by scanning the exit slit of the spectrometer at wavelength intervals as small as 0. 1 pm in first order. The beamline leading to the entrance slit of the VHRS includes three cylindrical uncoated glass mirrors with incident angles of 80, 70, and 80 degrees from the normal to provide a converging beam to match the f/number of the instrument which is about f/50. Since 1990, when the three-mirror light collection system was improved, a number of high resolution measurements have been made in the region between 40 nm and 120 nm.  2, fiche 2, Anglais, - very%20high%20resolution%20spectrometer

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 CONT

L'observatoire Fuse de la NASA a été lancé avec succès en juillet 1999. La France a contribué de façon déterminante à la réalisation de ce spectromètre à très haute résolution spectrale dans le domaine ultraviolet lointain placé sous responsabilité US et continue de contribuer de façon importante aux opérations de la mission en vol et au traitement des données reçues.  2, fiche 2, Français, - spectrom%C3%A8tre%20%C3%A0%20tr%C3%A8s%20haute%20r%C3%A9solution

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 OBS

Determination if trial is to be "catch"... After selecting a usable target pair, a random decision was made whether to present a 2P2(two pulse temporal resolution) trial or a catch trial(one trial in tar).(H. H Mikaelian, Dept. of Psychology, U. of New Brunswick, "An Investigation of the Effects of Video Display Units on Fundamental Visual Processes : Temporal Resolution and Contrast Sensitivity Function", Fredericton, N. B.)  1, fiche 3, Anglais, - catch%20trial

Fiche 3,  Justifications,  Français

Fiche 3,  Justifications,  Espagnol