TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A reverberation artifact occurs when two parallel highly echogenic structures [cause] the sound wave to bounce back and forth between them multiple times. The echo that returns to the transducer after a single reflection will be displayed in the proper location. The additional and sequential echoes are interpreted as [coming from deeper in the tissue than] the original reflector since they take longer to reach the transducer.  3, fiche 1, Anglais, - reverberation%20artifact

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Ils envoient à chaque rebond un écho vers la sonde; l'ensemble forme une série de lignes parallèles de moins en moins marquées, représentant autant de fausses interfaces anatomiques : l'artéfact de réverbération.  3, fiche 1, Français, - artefact%20de%20r%C3%A9verb%C3%A9ration

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

An acoustic survey is a method of gathering information on the abundance of a fish species using echo sounders. Sound is a form of energy which travels farther and faster underwater than in the air. So using the distance a sound travels and the record it makes when it bounces off of something underwater can tell a researcher a good deal about the creatures passing by underwater.  3, fiche 2, Anglais, - hydroacoustic%20survey

Record number: 2, Textual support number: 1 OBS

In an acoustic survey, a transducer emits a pulse of sound. The transducer can be either fixed or mounted on a moving vessel. The sound moves through the water until it bumps into something, such as a fish, and part of its energy is reflected back to the transducer. Another device, called an echo sounder, amplifies the returned energy and sends it to a recorder where it registers as a mark.  3, fiche 2, Anglais, - hydroacoustic%20survey

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

The repeater, which consists of an amplifier and a programmable delay line, amplifies and delays the intercepted signal. By transmitting this signal back to the radar and gradually increasing the delay, the range gate in the radar tracking system can be captured and pulled away from the target echo, thereby producing range deception. This technique is usually referred to as range gate pull off(RGPO).  3, fiche 3, Anglais, - range%20gate

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Le répétiteur, qui consiste en un amplificateur et en une ligne à retard programmable, amplifie et retarde le signal intercepté. La retransmission de ce signal au radar et l'augmentation graduelle du retard permettent la capture de la porte en distance du radar didactique et son déplacement par rapport à l'écho de la cible, ce qui produit une déception en distance. Cette technique est généralement appelée déréglage des portes de distance ou vol de la fenêtre de télémétrie (RGPO).  1, fiche 3, Français, - fen%C3%AAtre%20de%20t%C3%A9l%C3%A9m%C3%A9trie

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 CONT

Bottom scattering is a complex physical phenomenon. Movement of the vessel has an effect on the convolution of the transducer beam pattern function and the oblique back reflection function of the bottom. If we extract from the first and second bottom echo components of an echo signal related to the hardness and roughness of the seabed, then the clusters boundaries(rectangular fields) representing different bottom categories can be established in x/y coordinates.  2, fiche 4, Anglais, - bottom%20scattering

Record number: 4, Textual support number: 2 CONT

... bistatic surface and bottom scattering must be understood in order to predict the angular dependence or spatial coherence of acoustic signals which have propagated through a shallow water channel.  3, fiche 4, Anglais, - bottom%20scattering

Record number: 4, Textual support number: 1 OBS

As opposed to "surface scattering."  4, fiche 4, Anglais, - bottom%20scattering

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 DEF

A radar that opperates in the microwave range and that allows for the conversion of acquired data into bidimensional images.  3, fiche 5, Anglais, - SAR%20imaging%20radar

Record number: 5, Textual support number: 1 OBS

Typical bandwidths for an imaging radar are in the range 10 to 200 MHz. At the Earth's surface, the energy in the radar pulse is scattered in all directions, with some reflected back toward the antenna. This back scatter returns to the radar as a weaker radar echo and is received by the antenna in a specific polarization(horizontal or vertical, not necessarily the same as the transmitted pulse), for later processing and display as an image.  4, fiche 5, Anglais, - SAR%20imaging%20radar

Record number: 5, Textual support number: 2 OBS

SAR imaging radar: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, fiche 5, Anglais, - SAR%20imaging%20radar

Fiche 5,  Justifications,  Français

Record number: 5, Textual support number: 1 DEF

Radar fonctionnant dans le domaine des hyperfréquences et permettant de restituer les données acquises sous forme d'images à deux dimensions [portée et azimut].  2, fiche 5, Français, - radar%20imageur%20SAR

Record number: 5, Textual support number: 1 OBS

radar imageur SAR : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, fiche 5, Français, - radar%20imageur%20SAR

Fiche 5,  Justifications,  Espagnol

Fiche 6,  Justifications,  Anglais

Record number: 6, Textual support number: 1 DEF

A radar that produces two-dimensional images; the two dimensions are called range, and azimuth.  2, fiche 6, Anglais, - imaging%20radar

Record number: 6, Textual support number: 1 OBS

Typical bandwidths for an imaging radar are in the range 10 to 200 MHz. At the Earth's surface, the energy in the radar pulse is scattered in all directions, with some reflected back toward the antenna. This backscatter returns to the radar as a weaker radar echo and is received by the antenna in a specific polarization(horizontal or vertical, not necessarily the same as the transmitted pulse). These echoes are converted to digital data and passed to a data recorder for later processing and display as an image.  3, fiche 6, Anglais, - imaging%20radar

Record number: 6, Textual support number: 2 OBS

imaging radar: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  2, fiche 6, Anglais, - imaging%20radar

Fiche 6,  Justifications,  Français

Record number: 6, Textual support number: 1 DEF

Radar permettant de restituer les données acquises sous formes d'images à deux dimensions; les deux dimensions étant la portée et l'azimut.  2, fiche 6, Français, - radar%20imageur

Record number: 6, Textual support number: 1 OBS

radar imageur : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, fiche 6, Français, - radar%20imageur

Record number: 6, Textual support number: 1 PHR

Radar imageur à antenne réelle.  2, fiche 6, Français, - radar%20imageur

Fiche 6,  Justifications,  Espagnol

Fiche 7,  Justifications,  Anglais

Record number: 7, Textual support number: 1 DEF

[A] synthetically processed sound effect that mimics natural echo.  2, fiche 7, Anglais, - digital%20echo

Record number: 7, Textual support number: 1 CONT

Laser Disc Players. Feature Comparison... Karaoke Features. Digital Echo. One-Touch Karaoke. Microphone Input and Volume Control.  3, fiche 7, Anglais, - digital%20echo

Record number: 7, Textual support number: 1 OBS

Echo in general is the "bouncing" of waves back and forth between 2 surfaces. This effect gives a spacious or ambient feeling that works great with vocals.  2, fiche 7, Anglais, - digital%20echo

Fiche 7,  Justifications,  Français

Record number: 7, Textual support number: 1 DEF

Effet sonore synthétisé simulant l'écho naturel.  2, fiche 7, Français, - %C3%A9cho%20num%C3%A9rique

Record number: 7, Textual support number: 1 CONT

Lecteurs de [disques laser]. Tableau comparatif des particularités. [...] Particularités propres au karaoke. Écho numérique. Karaoke par touche unique. Entrée pour microphone avec réglage de niveau.  3, fiche 7, Français, - %C3%A9cho%20num%C3%A9rique

Record number: 7, Textual support number: 1 PHR

Canal, chambre d'écho numérique.  4, fiche 7, Français, - %C3%A9cho%20num%C3%A9rique

Record number: 7, Textual support number: 2 PHR

Effet écho numérique.  4, fiche 7, Français, - %C3%A9cho%20num%C3%A9rique

Fiche 7,  Justifications,  Espagnol

Fiche 8,  Justifications,  Anglais

Record number: 8, Textual support number: 1 DEF

A technique used to stop a received signal from being transmitted back to its origin by constructing a signal closely approximating the echo component and subtracting it from the locally transmitted signal.  2, fiche 8, Anglais, - echo%2Dcancelling%20technique

Fiche 8,  Justifications,  Français

Fiche 8,  Justifications,  Espagnol

Record number: 8, Textual support number: 1 DEF

Técnica utilizada para detener una señal recibida que está siendo devuelta a su origen, mediante la creación de una señal que se acerca estrechamente al componente de eco y lo sustrae de la señal transmitida localmente.  2, fiche 8, Espagnol, - t%C3%A9cnica%20de%20cancelaci%C3%B3n%20de%20eco