TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The ratio of the radiation intensity of an antenna in a given direction to the intensity that would be produced by a hypothetical ideal isotropic antenna that has no power loss.  6, record 1, English, - antenna%20gain

Record number: 1, Textual support number: 1 OBS

When not otherwise specified, the gain refers to the direction of maximum radiation. Gain may be considered for specific polarizations.  6, record 1, English, - antenna%20gain

Record number: 1, Textual support number: 2 OBS

antenna gain: designation and definition officially approved by the Defence Terminology Standardization Board.  7, record 1, English, - antenna%20gain

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Rapport entre l'intensité de rayonnement d'une antenne dans une direction donnée et celle d'une antenne isotrope idéale hypothétique qui n'aurait pas de perte de puissance.  3, record 1, French, - gain%20d%27antenne

Record number: 1, Textual support number: 1 OBS

Sans indication du contraire, le gain se rapporte à la direction dans laquelle le rayonnement est maximal. Le gain peut être pris en considération pour des polarisations particulières.  3, record 1, French, - gain%20d%27antenne

Record number: 1, Textual support number: 2 OBS

gain d'antenne : désignation et définition uniformisées par le Conseil de normalisation de terminologie de la défense.  4, record 1, French, - gain%20d%27antenne

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The level is exceeded 3 per cent of the time by the scanning antenna far field radiation pattern exclusive of the main beam as measured at the function scan rate using a 26 kHz beam envelope video filter. The 3 per cent level is determined by the ratio of the side-lobe duration which exceeds the specified level to the total scan duration.  1, record 2, English, - dynamic%20side%2Dlobe%20level

Record number: 2, Textual support number: 1 OBS

dynamic side-lobe level: designation and definition officially approved by the International Civil Aviation Organization (ICAO).  2, record 2, English, - dynamic%20side%2Dlobe%20level

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Niveau dépassé pendant 3 % du temps par le diagramme de rayonnement en champ lointain de l'antenne de balayage, en dehors du faisceau principal, lorsque la mesure est effectuée à la cadence de balayage de la fonction à l'aide d'un filtre vidéo d'enveloppe de faisceau de 26 kHz. Le niveau de 3 % est déterminé par le rapport du temps pendant lequel les lobes secondaires dépassent le niveau spécifié à la durée totale du balayage.  1, record 2, French, - niveau%20dynamique%20des%20lobes%20secondaires

Record number: 2, Textual support number: 1 OBS

niveau dynamique des lobes secondaires : désignation et définition uniformisées par l'Organisation de l'aviation civile internationale (OACI).  2, record 2, French, - niveau%20dynamique%20des%20lobes%20secondaires

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Nivel excedido durante el 3 % del tiempo por el diagrama de radiación en campo lejano de la antena de exploración, con exclusión del haz principal, medido en el régimen de exploración de la función mediante el empleo de un filtro de vídeo de envolvente de haz de 26 kHz. El nivel del 3 % se determina mediante la relación entre el tiempo durante el cual los lóbulos laterales exceden el nivel especificado a la duración total de la exploración.  1, record 2, Spanish, - nivel%20din%C3%A1mico%20de%20l%C3%B3bulo%20lateral%20de%20antena

Record number: 2, Textual support number: 1 OBS

nivel dinámico de lóbulo lateral de antena: designación y definición aceptadas oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 2, Spanish, - nivel%20din%C3%A1mico%20de%20l%C3%B3bulo%20lateral%20de%20antena

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A type of DEW [directed-energy weapon] that uses RF [radio-frequency] energy to upset or damage the electronics of a target.  5, record 3, English, - radio%20frequency%20weapon

Record number: 3, Textual support number: 1 CONT

RF weapons are usually divided into two categories: high power microwave (HPM) weapons and ultrawideband (UWB) (or video pulse) weapons.  6, record 3, English, - radio%20frequency%20weapon

Record number: 3, Textual support number: 2 CONT

The primary distinction between RF weapons and more conventional EW systems is that RF weapons actually affect the electronics and not just the electronic environment, thereby causing temporary or permanent electronics failure that persists even after the RF beam has been turned off. RF weapons will mainly target receiver systems with in-band HPM [high-power microwave] radiation or computer systems with ultrawideband impulses.  5, record 3, English, - radio%20frequency%20weapon

Record number: 3, Textual support number: 3 CONT

In a radio-frequency weapon, electromagnetic radiation at wavelengths similar to that of radar is aimed at a target by means of an antenna. The principal effect would be to damage or destroy the electronic circuits of a missile.  7, record 3, English, - radio%20frequency%20weapon

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

We present the modification of two ESA [European Space Agency] ground stations carried out in order to support the in-flight RF [Radio Frequency] validation of the Proximity Communication Equipment(PCE), part of the International Space Station(ISS). This subsystem plays a critical role during the docking of the Automated Transfer Vehicle(ATV), and has to be tested prior to each ATV launch, to ensure that the RF performance is as expected. For the check-out, an unmodulated signal is transmitted by the PCE during an ISS pass, and received by the two ground stations. Based on the strength of the received signal, the radiation characteristic of the complete PCE can be assessed, and compared with the nominal performance. The measurement process requires calibrating the receiving subsystem, including antenna, front-end and back-end equipment. The adopted calibration procedure, only relying on radio stars measurement, does not require the use of a calibrated source external to the ground station.  3, record 4, English, - proximity%20communication%20equipment

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Le système de communications PCE (Proximity Communication Equipment) a été développé et intégré à Toulouse par EADS [European Aeronautic Defence Space] Astrium, dans le cadre du programme ATV [véhicule de transfert automatique] de l'Agence Spatiale Européenne, sous responsabilité d'EADS SPACE Transportation qui est le maître d'œuvre du développement et de la construction du segment spatial de l'ATV. Le PCE est destiné à assurer les communications de proximité pour les 30 derniers kilomètres de vol du futur véhicule cargo européen ATV à son approche de la Station spatiale internationale (ISS). [...] Le PCE est un sous-ensemble intégré. Il est constitué de deux chaînes de communications en bande S, entièrement redondantes. Il comprend deux transpondeurs à spectre étalé, deux équipements de gestion de protocoles CCSDS [Consultative Committee for Space Data Systems] et des équipements radio fréquence. Le PCE sera installé dans le module Zvezda de l'ISS et sera opérationnel durant la phase dite «de proximité» correspondant aux 30 derniers kilomètres du vol ATV et à l'exercice délicat de son arrimage à la Station. Ce rendez-vous orbital automatique représentera une première européenne. Parmi l'ensemble des données de commande et de contrôle qu'il transmettra dans le cadre de sa mission de communications, le PCE fournira à l'ATV les informations de position GPS [système mondial de localization] nécessaires à la navigation relative vers la Station spatiale internationale (ISS). À une distance de 500 m et jusqu'à l'arrimage, la navigation se poursuivra à l'aide d'instruments laser, d'abord avec un télégoniomètre puis avec un vidéomètre pour les phases finales.  3, record 4, French, - syst%C3%A8me%20de%20communication%20PCE

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 OBS

The plane of an antenna in which lies the magnetic field vector of linearly polarized radiation.  2, record 5, English, - h%20plane

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 OBS

Les coudes peuvent être : - dans le plan électrique (grand côté du guide) - dans le plan magnétique (petit côté du guide).  1, record 5, French, - plan%20magn%C3%A9tique

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

The role of a broadcast certificate is to certify that a broadcast installation meets the technical requirements of the department for operation.  2, record 6, English, - broadcasting%20certificate

Record number: 6, Textual support number: 2 CONT

The holder of a broadcasting certificate for a transmitter facility is responsible for maintaining frequency, modulation, antenna radiation patterns(directional and omnidirectional), and total power within permitted tolerances at all times.  3, record 6, English, - broadcasting%20certificate

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

Il incombe au titulaire d'un certificat de radiodiffusion pour une installation émettrice de maintenir la fréquence, la modulation, le diagramme de rayonnement d'antenne (directif et omnidirectif) et la puissance totale à l'intérieur des tolérances permises, en tout temps.  2, record 6, French, - certificat%20de%20radiodiffusion

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

The ratio, generally expressed in decibels, of the radiation intensity produced by an antenna in a given direction to the radiation intensity that would be obtained if the power accepted by the antenna were radiated equally in all directions.  2, record 8, English, - isotropic%20gain

Record number: 8, Textual support number: 1 OBS

a) If no direction is specified, the direction of maximum radiation intensity from the given antenna is implied; b) If the antenna is lossless its absolute gain is equal to its directivity in the same direction.  2, record 8, English, - isotropic%20gain

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Rapport, généralement exprimé en décibels, de la partie de l'intensité de rayonnement totale d'une antenne dans une direction donnée et correspondant à une polarisation donnée, à l'intensité de rayonnement qui serait obtenue si la totalité de la puissance fournie à l'antenne était rayonnée également dans toutes les directions de l'espace.  2, record 8, French, - gain%20isotrope

Record 8,  Textual support,  Spanish

Record number: 8, Textual support number: 1 DEF

Relación, expresada generalmente en decibelios, entre la intensidad de radiación producida por una antena en una dirección dada y la intensidad de radiación que se obtendría si la totalidad de la potencia suministrada a la antena fuera radiada del mismo modo en todas las direcciones del espacio.  1, record 8, Spanish, - ganancia%20is%C3%B3tropa

Record number: 8, Textual support number: 1 OBS

Si no hay dirección específica, la dirección de la máxima intensidad de radiación está implícita; Si se trata de una antena sin pérdidas, su ganancia absoluta es igual a su directividad en las misma dirección.  1, record 8, Spanish, - ganancia%20is%C3%B3tropa

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Two approaches exist for contouring the radiation pattern of a satellite reflector antenna : use of a conventional offset parabolic reflector system combined with a multi-element feed array, rather than a single element; retaining the single feed element but modifying, or shaping, the profile of the reflector(or reflectors).  2, record 9, English, - feed%20element

Record 9,  Textual support,  French

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

The general situation for a microwave polarimeter is that electromagnetic radiation is incident upon a feedhorn antenna. This radiation can be described by its electric field...  1, record 10, English, - microwave%20polarimeter

Record number: 10, Textual support number: 1 OBS

polarimeter: Instrument used in meteorology to measure the percentage of polarization of the light received from any point of the sky.  3, record 10, English, - microwave%20polarimeter

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 OBS

polarimètre : Instrument employé en météorologie pour mesurer le pourcentage de polarisation de la lumière provenant d'un point quelconque du ciel.  2, record 10, French, - polarim%C3%A8tre%20%C3%A0%20micro%2Dondes

Record 10,  Textual support,  Spanish

Record number: 10, Textual support number: 1 OBS

polarímetro: Instrumento usado en meteorología para determinar el porcentaje de polarización de la luz que llega desde un punto cualquiera de la bóveda celeste.  2, record 10, Spanish, - polar%C3%ADmetro%20de%20microondas

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

An antenna having two equal limbs forming a horizontal right-angled V and having a substantially omni-directional radiation pattern.  3, record 11, English, - quadrant%20antenna

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish

Record number: 11, Textual support number: 1 DEF

Antena simétrica, sensiblemente omnidireccional, formada por dos conductores horizontales de la misma longitud que forman una V en ángulo recto alimentada por el vértice.  1, record 11, Spanish, - antena%20de%20cuadrante

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 DEF

A directional antenna that consists of two vertical wires spaced one half-wavelength apart or less, connected in phase opposition to give a figure-eight radiation pattern.  3, record 12, English, - Adcock%20antenna

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 DEF

Paire d'antennes verticales séparées entre elles d'une demi-longueur d'onde et excitées en opposition de phase de manière à favoriser le rayonnement électromagnétique dans l'axe des deux antennes.  2, record 12, French, - antenne%20Adcock

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 DEF

A vertical antenna that is wider at the top, to modify the current distribution and give a more desirable radiation pattern in the vertical plane.  4, record 13, English, - top%2Dloaded%20vertical%20antenna

Record number: 13, Textual support number: 1 OBS

A coil may be connected between the enlarged portion of the antenna and the remaining structure.  4, record 13, English, - top%2Dloaded%20vertical%20antenna

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 DEF

Antenne verticale élargie au sommet pour produire l'effet d'une charge capacitive.  2, record 13, French, - antenne%20%C3%A0%20capacit%C3%A9%20terminale

Record number: 13, Textual support number: 1 OBS

Ce terme désigne généralement une antenne de véhicule formée d'une tige rigide surmontée d'un chapeau métallique portant une antenne-fouet et connecté à la tige par une bobine.  2, record 13, French, - antenne%20%C3%A0%20capacit%C3%A9%20terminale

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

An antenna that confines radiation mainly to small angles of elevation, to minimize radiation of the sky waves which cause fading.  4, record 14, English, - antifading%20antenna

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Antenne d'émission radio dont le lobe principal du diagramme de rayonnement dans le plan vertical est presque horizontal pour limiter la propagation de l'onde de ciel et les évanouissements dus à celle-ci.  2, record 14, French, - antenne%20%C3%A0%20rayonnement%20z%C3%A9nithal%20r%C3%A9duit

Record 14,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 CONT

A Cassegrain antenna has a parabolic reflector that focuses the incoming radiation onto a hyperbolic sub-reflector and thence into the waveguide. On the transmit path the opposite occurs.  1, record 19, English, - hyperbolic%20sub%2Dreflector

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 CONT

Lorsque l'image du Soleil se forme directement sur les photopiles, le concentrateur est à image [...] s'il fonctionne par réflexion. [...] Les configurations rencontrées vont du simple système à section droite trapézoïdale, aux installations combinant un concentrateur parabolique avec un réflecteur secondaire hyperbolique [...]  1, record 19, French, - r%C3%A9flecteur%20secondaire%20hyperbolique

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 CONT

Where a fixed service using tropospheric scatter operates in the bands listed in the first column and there is insufficient frequency separation, there must be sufficient angular separation between the direction to the space station and the direction of maximum radiation of the antenna of the receiving station of the fixed service using tropospheric scatter, in order to ensure that the interference power at the receiver input of the fixed-service station does not exceed-168 dBW in any 4 kHz band.  1, record 20, English, - sufficient%20angular%20separation

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 CONT

Lorsque le service fixe utilisant les techniques de diffusion troposphérique fonctionne dans les bandes énumérées dans la première colonne et que la séparation de fréquence est insuffisante, il faut prévoir une séparation angulaire suffisante entre la direction de la station spatiale et celle du rayonnement maximal de l'antenne de la station réceptrice du service fixe utilisant les techniques de diffusion troposphérique, afin que la puissance de brouillage à l'entrée du récepteur de la station du service fixe ne dépasse pas -168 dBW dans une bande quelconque large de 4 kHz.  1, record 20, French, - s%C3%A9paration%20angulaire%20suffisante

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 CONT

The MLS detects naturally occurring microwave thermal emissions from Earth's limb to create vertical profiles of atmospheric gasses, temperature, pressure and cloud ice. MLS looks 90° from the angle of UARS’ [Upper Atmosphere Research Statellite] orbit. Thermal radiation enters the instrument through a three-mirror antenna system. The antenna mechanically scans in the vertical plane through the atmospheric limb every 65. 5 seconds. The scan covers a height range from the surface up to 90 km(55 miles). Upon entering the instrument, the signal from the antenna is separated into three signals for processing by different radiometers. The 63-GHz radiometer measures temperature and pressure. The 183-GHz radiometer measures water vapor and ozone. The 205-GHz radiometer measures ClO, ozone, sulfur dioxide, nitric acid and water vapor.  2, record 21, English, - microwave%20limb%20sounder

Record number: 21, Textual support number: 1 OBS

microwave limb sounder: MLS: term and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, record 21, English, - microwave%20limb%20sounder

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 DEF

Capteur passif utilisé pour le sondage au limbe en hyperfréquence.  4, record 21, French, - sondeur%20au%20limbe%20en%20hyperfr%C3%A9quence

Record number: 21, Textual support number: 1 CONT

[Le] MLS (Microwave Limb Sounder) s'intéresse à la concentration dans l'atmosphère d'espèces chimiques qui contribuent à la destruction de la couche d'ozone.  2, record 21, French, - sondeur%20au%20limbe%20en%20hyperfr%C3%A9quence

Record number: 21, Textual support number: 1 OBS

sondeur au limbe en hyperfréquence; MLS : terme et abréviation uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  5, record 21, French, - sondeur%20au%20limbe%20en%20hyperfr%C3%A9quence

Record 21,  Textual support,  Spanish

Record 22,  Textual support,  English

Record number: 22, Textual support number: 1 CONT

A dipole feed for a paraboloidal reflector antenna uses a conical reflector to direct the radiation of the dipole towards the concave reflecting surface of the parabola. The size and apex angle of the conical reflector are optimized to yield the desired feed pattern, the optimization parameters depending on the reflector size and focal length and being obtained numerically or experimentally to maximize reflector gain.  3, record 22, English, - feed%20pattern

Record 22,  Textual support,  French

Record number: 22, Textual support number: 1 CONT

On compare différentes définitions pour le rendement des pertes de polarisation des réflecteurs de type Cassegrain et des réflecteurs à alimentation frontale. On examine les effets de l'angle d'ouverture, de la conicité de l'alimentation, et de l'asymétrie du diagramme d'alimentation sur le rendement ci-dessus.  2, record 22, French, - diagramme%20d%27alimentation

Record 22,  Textual support,  Spanish

Record 23,  Textual support,  English

Record number: 23, Textual support number: 1 DEF

A unidirectional antenna having a narrow major lobe with approximately circular contours of equal radiation intensity in the region of the major lobe.  2, record 23, English, - pencil%2Dbeam%20antenna

Record 23,  Textual support,  French

Record number: 23, Textual support number: 1 DEF

Antenne dont le faisceau a la forme d'un cône de révolution de très faible angle au sommet.  2, record 23, French, - antenne%20%C3%A0%20faisceau%2Dcrayon

Record 23,  Textual support,  Spanish

Record 24,  Textual support,  English

Record number: 24, Textual support number: 1 DEF

The angular measure of the transverse section of a beam, usually the main beam, lying within directions corresponding to specified values of field strength relative to the maximum.  5, record 24, English, - beamwidth

Record number: 24, Textual support number: 1 CONT

Beamwidth is a measure of the width of the radiation pattern of an antenna. For SAR [Synthetic Aperture Radar] applications, both the vertical beamwidth, affecting the width of the illuminated swath, and the horizontal or azimuth pattern, which determines, indirectly, the azimuth resolution, are frequently used. Beamwidth may be measured in the one-way or two-way form and in either voltage or power.  6, record 24, English, - beamwidth

Record number: 24, Textual support number: 1 OBS

beamwidth: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  7, record 24, English, - beamwidth

Record 24,  Textual support,  French

Record number: 24, Textual support number: 1 DEF

Angle de deux directions, prises à l'intérieur du faisceau d'une antenne dans un plan spécifié passant par l'axe principal de l'antenne, dans lesquelles la valeur de la composante spécifiée de la force cymomotrice est une fraction spécifiée de la valeur maximale dans ce plan. [Définition normalisée par l'AFNOR.]  5, record 24, French, - largeur%20de%20faisceau

Record number: 24, Textual support number: 1 OBS

On considère généralement la largeur angulaire à demi-puissance ou celle qui correspond aux directions des premiers minimums.  5, record 24, French, - largeur%20de%20faisceau

Record number: 24, Textual support number: 2 OBS

largeur angulaire; ouverture angulaire : termes normalisés par l'AFNOR.  6, record 24, French, - largeur%20de%20faisceau

Record number: 24, Textual support number: 3 OBS

largeur de faisceau : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  7, record 24, French, - largeur%20de%20faisceau

Record 24,  Textual support,  Spanish

Record number: 24, Textual support number: 1 DEF

Ángulo comprendido entre dos puntos del lóbulo principal de radiación de una antena, a partir de los cuales la potencia radiada cae por debajo de los 3 dB de su valor máximo.  3, record 24, Spanish, - ancho%20del%20haz

Record 25,  Textual support,  English

Record number: 25, Textual support number: 1 DEF

That portion of the pulsed beam energy which is reflected back to the receiver after the beam encounters an obstruction in the atmosphere.  6, record 25, English, - radar%20echo

Record number: 25, Textual support number: 1 CONT

The characteristics of a radar echo are determined by 1) the waveform, frequency, and power of the incident wave; 2) the range and velocity of the target with respect to the radar; and 3) the size, shape, and composition of the target.  7, record 25, English, - radar%20echo

Record number: 25, Textual support number: 2 CONT

Each return signal(echo) is recorded in amplitude and phase for a slight displacement of the antenna in the flight direction. The effect of a considerable larger antenna is obtained synthetically by storing and combined processing of these multiple echoes. The SAR method operates only when the radar radiation is coherent.  8, record 25, English, - radar%20echo

Record number: 25, Textual support number: 1 OBS

cell: Such usage, although common, is technically incorrect.  9, record 25, English, - radar%20echo

Record number: 25, Textual support number: 2 OBS

radar echo: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  8, record 25, English, - radar%20echo

Record 25,  Textual support,  French

Record number: 25, Textual support number: 1 DEF

Portion de l'énergie pulsée du faisceau qui est réfléchie et renvoyée au récepteur lorsque le faisceau rencontre un obstacle dans l'atmosphère.  4, record 25, French, - %C3%A9cho%20radar

Record number: 25, Textual support number: 1 CONT

Le radar météorologique sert en premier lieu à la détection des zones de précipitations ayant cours dans la situation météo du moment. Après traitement par des ordinateurs spécifiques, les échos radar sont affichés sur un écran où divers repères géographiques tels que frontières, rivières et lacs permettent de localiser les zones de précipitations. L'intensité des échos radar fournit une mesure quantitative des précipitations, exprimée en millimètres par heure (mm/h), présentée au moyen de zones coloriées. En effet, plus l'écho renvoyé par le faisceau radar est important plus l'obstacle qui le renvoie est dense, et plus la pluie ou la neige est abondante.  5, record 25, French, - %C3%A9cho%20radar

Record number: 25, Textual support number: 1 OBS

écho radar: terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  6, record 25, French, - %C3%A9cho%20radar

Record 25,  Textual support,  Spanish

Record number: 25, Textual support number: 1 DEF

Aquella porción del impulso de energía direccional (emitido por un radar) que es reflejada hacia el receptor al encontrar el haz algún obstáculo.  1, record 25, Spanish, - eco%20de%20radar

Record 26,  Textual support,  English

Record number: 26, Textual support number: 1 DEF

The lobe of an antenna radiation pattern containing the highest gain.  3, record 26, English, - main%20lobe

Record number: 26, Textual support number: 1 OBS

main lobe: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 26, English, - main%20lobe

Record 26,  Textual support,  French

Record number: 26, Textual support number: 1 CONT

Le «lobe d'antenne» est constitué par un lobe principal [...] correspondant à la sensibilité principale de l'antenne, et des lobes parasites [secondaires].  2, record 26, French, - lobe%20principal

Record number: 26, Textual support number: 1 OBS

lobe principal : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 26, French, - lobe%20principal

Record 26,  Textual support,  Spanish

Record number: 26, Textual support number: 1 DEF

Lóbulo que contiene la dirección de radiación máxima.  2, record 26, Spanish, - l%C3%B3bulo%20principal

Record 27,  Textual support,  English

Record number: 27, Textual support number: 1 CONT

In-orbit calibration requires having the knowledge to the requested accuracy of the following parameters at the time of radar sensing for a data take :Antenna Radiation Patterns [;] Antenna Pointing(i. e. the reference frame of the radiation pattern) [;] Absolute Gain(i. e. instrument and atmospheric effect) for absolute radiometry [;] Polarimetric characteristics(i. e. crosspolarisation and imbalance effects) [;] Variations of these parameters during the data taking [-] the short-term Instrument Stability Tracking. With the exception of the atmospheric effect on propagation loss and polarimetric imbalances, the rest of the parameters fall in the category of instrument calibration.  2, record 27, English, - in%2Dorbit%20calibration

Record number: 27, Textual support number: 1 OBS

in-orbit calibration: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, record 27, English, - in%2Dorbit%20calibration

Record 27,  Textual support,  French

Record number: 27, Textual support number: 1 CONT

Procédure d'étalonnage en orbite [...]  2, record 27, French, - %C3%A9talonnage%20en%20orbite

Record number: 27, Textual support number: 2 CONT

Utilisation d'un site en Antarctique pour l'étalonnage en orbite.  3, record 27, French, - %C3%A9talonnage%20en%20orbite

Record number: 27, Textual support number: 1 OBS

étalonnage en orbite : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  4, record 27, French, - %C3%A9talonnage%20en%20orbite

Record 27,  Textual support,  Spanish

Record 28,  Textual support,  English

Record number: 28, Textual support number: 1 CONT

The radiation pattern of a satellite antenna that has been designed so that its footprint follows the boundary of a specified geographical area(the area of service provision) as closely as possible. Shaped beams maximise the antenna gain over the service area and reduce the likelihood of interference into systems servings other geographical areas.  2, record 28, English, - shaped%20beam

Record 28,  Textual support,  French

Record number: 28, Textual support number: 1 DEF

Diagramme de rayonnement d'une antenne de satellite conçue pour que son empreinte suive au plus près la limite d'une zone géographique précise (la zone de fourniture du service).  4, record 28, French, - faisceau%20model%C3%A9

Record number: 28, Textual support number: 1 CONT

Les faisceaux modelés maximisent le gain d'antenne sur la zone de service et réduisent la probabilité d'un brouillage causé aux systèmes desservant d'autres zones géographiques.  4, record 28, French, - faisceau%20model%C3%A9

Record 28,  Textual support,  Spanish

Record 29,  Textual support,  English

Record number: 29, Textual support number: 1 DEF

Changing the direction of the major lobe of a radiation pattern, usually by switching antenna elements.  2, record 29, English, - beam%20steering

Record 29,  Textual support,  French

Record 29,  Textual support,  Spanish

Record number: 29, Textual support number: 1 DEF

Cambio de la dirección del lóbulo mayor de un diagrama de radiación, normalmente a través de la conmutación de elementos de antena.  2, record 29, Spanish, - orientaci%C3%B3n%20de%20haz

Record 30,  Textual support,  English

Record number: 30, Textual support number: 1 DEF

For any given reference point on [an antenna], the power radiated by the [antenna] divided by the mean square value of the current at the reference point.  3, record 30, English, - antenna%20radiation%20resistance

Record 30,  Textual support,  French

Record number: 30, Textual support number: 1 DEF

Quotient de la puissance rayonnée par le carré de la valeur efficace du courant d'antenne en un point spécifié, en principe au point d'alimentation ou au ventre du courant.  1, record 30, French, - r%C3%A9sistance%20de%20rayonnement

Record 30,  Textual support,  Spanish

Record number: 30, Textual support number: 1 DEF

Para cualquier punto de referencia determinado en la antena, potencia radiada por la antena dividida por el valor cuadrático medio de la corriente en el punto de referencia.  1, record 30, Spanish, - resistencia%20de%20radiaci%C3%B3n%20de%20la%20antena

Record number: 30, Textual support number: 1 OBS

Se representa por el símbolo Rr. Los puntos de referencia son generalmente los puntos de alimentación o los antinodos de corriente. Deberían ser siempre determinadas.  1, record 30, Spanish, - resistencia%20de%20radiaci%C3%B3n%20de%20la%20antena

Record 31,  Textual support,  English

Record number: 31, Textual support number: 1 DEF

The radiation pattern of an array antenna when the pattern of each array element is considered to be isotropic.  1, record 31, English, - array%20factor

Record number: 31, Textual support number: 1 OBS

array factor: term and definition standardized by the Institute of Electrical and Electronics Engineers .  2, record 31, English, - array%20factor

Record 31,  Textual support,  French

Record number: 31, Textual support number: 1 DEF

Fonction caractéristique de directivité d'une antenne en réseau dont les éléments rayonnants seraient constitués par des antennes isotropes.  1, record 31, French, - fonction%20de%20r%C3%A9seau

Record number: 31, Textual support number: 1 OBS

fonction (caractéristique) de réseau : terme et définition normalisés par l'AFNOR.  2, record 31, French, - fonction%20de%20r%C3%A9seau

Record number: 31, Textual support number: 2 OBS

fonction caractéristique : terme normalisé par la Commission électrotechnique internationale (1970).  2, record 31, French, - fonction%20de%20r%C3%A9seau

Record 31,  Textual support,  Spanish

Record 32,  Textual support,  English

Record number: 32, Textual support number: 1 DEF

A secondary radiator or an array of secondary radiators or a reflecting surface placed behind a primary radiator or an array of primary radiators or a feed, in order to increase forward and reduce backward radiation from the [antenna].  2, record 32, English, - reflector

Record 32,  Textual support,  French

Record number: 32, Textual support number: 1 DEF

Élément secondaire placé derrière un ou plusieurs éléments primaires par rapport au sens désiré de la propagation, en vue de renforcer le champ électromagnétique dans ce même sens et de le réduire dans l'autre sens.  1, record 32, French, - r%C3%A9flecteur

Record 32,  Textual support,  Spanish

Record number: 32, Textual support number: 1 DEF

Elemento secundario situado detrás de un elemento primario o un conjunto de elementos primarios en el sentido deseado de la propagación, para aumentar el campo electromagnético en el mismo sentido y reducirlo en el otro sentido.  1, record 32, Spanish, - reflector

Record 33,  Textual support,  English

Record number: 33, Textual support number: 1 DEF

A vertical antenna combined with a turnstile element to lower the angle of radiation. It has a concentric base support and a center conductor that place the antenna at ground potential, even though located several wavelengths above ground.  1, record 33, English, - ground%2Dplane%20antenna

Record 33,  Textual support,  French

Record number: 33, Textual support number: 1 DEF

Antenne unipolaire dans laquelle la surface conductrice est constituée par une plaque ou un ensemble de conducteurs disposés radialement dans un plan.  1, record 33, French, - antenne%20%C3%A0%20plan%20de%20sol

Record number: 33, Textual support number: 1 OBS

antenne à plan de sol : terme et définition normalisés par l'AFNOR.  2, record 33, French, - antenne%20%C3%A0%20plan%20de%20sol

Record 33,  Textual support,  Spanish

Record 34,  Textual support,  English

Record number: 34, Textual support number: 1 DEF

An antenna consisting of a conducting coil, of any convenient cross section(generally circular), which emits or receives radio energy. The principal lobe of the radiation pattern is wide and is in the direction perpendicular to the plane of the coil.  5, record 34, English, - loop%20antenna

Record number: 34, Textual support number: 1 OBS

Also called loop.  5, record 34, English, - loop%20antenna

Record number: 34, Textual support number: 2 OBS

loop antenna; loop aerial: terms officially approved by the International Civil Aviation Organization (ICAO).  6, record 34, English, - loop%20antenna

Record 34,  Textual support,  French

Record number: 34, Textual support number: 1 DEF

Bobinage utilisé comme antenne de réception directrice et antiparasite, formé d'un petit nombre de spires enroulées sur une bobine à air généralement carrée et de dimensions relativement grandes ou sur un bâtonnet de ferrite cylindrique de quelques centimètres de diamètre au maximum.  4, record 34, French, - cadre

Record number: 34, Textual support number: 1 OBS

antenne cadre : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI) et par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.  5, record 34, French, - cadre

Record 34,  Textual support,  Spanish

Record number: 34, Textual support number: 1 DEF

Circuito cerrado diseñado para ser utilizado como una antena y que consiste en una o más vueltas de hilo que se extienden en el mismo plano o en planos paralelos.  3, record 34, Spanish, - antena%20de%20cuadro

Record number: 34, Textual support number: 1 OBS

Este tipo de antena se usa en radiodetección y en modernos receptores de radio. La frecuencia de funcionamiento es normalmente tal que da distribución de corriente sustancialmente uniforme a lo largo del conductor.  3, record 34, Spanish, - antena%20de%20cuadro

Record number: 34, Textual support number: 2 OBS

antena de cuadro : término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  4, record 34, Spanish, - antena%20de%20cuadro

Record 35,  Textual support,  English

Record number: 35, Textual support number: 1 DEF

4 pi times the ratio of the radiation intensity in that direction to the total power radiated by the antenna.  2, record 35, English, - directive%20gain

Record number: 35, Textual support number: 1 OBS

The directive gain is fully realized on reception only when the incident polarization is the same as the polarization of the antenna on transmission.  2, record 35, English, - directive%20gain

Record number: 35, Textual support number: 2 OBS

directive gain: term and definition standardized by IEEE.  3, record 35, English, - directive%20gain

Record 35,  Textual support,  French

Record number: 35, Textual support number: 1 DEF

Quotient de l'intensité de rayonnement d'une antenne dans une direction, par la valeur moyenne des intensités de rayonnement dans toutes les directions de l'espace; si la direction n'est pas spécifiée, le quotient correspond à celle dans laquelle l'intensité de rayonnement est maximale.  1, record 35, French, - gain%20de%20directivit%C3%A9

Record number: 35, Textual support number: 1 OBS

gain de directivité; directivité : termes et définition normalisés par l'AFNOR.  2, record 35, French, - gain%20de%20directivit%C3%A9

Record number: 35, Textual support number: 2 OBS

directivité : ce terme peut être ambigu, puisque le même mot sert d'équivalent à «directivity».  2, record 35, French, - gain%20de%20directivit%C3%A9

Record 35,  Textual support,  Spanish

Record number: 35, Textual support number: 1 DEF

Característica cuantitativa de una antena, igual a 4 pi veces la razón de la intensidad de radiación.  1, record 35, Spanish, - ganancia%20directiva

Record 36,  Textual support,  English

Record number: 36, Textual support number: 1 DEF

Discrimination caused by the directivity of an antenna that has a different radiation direction.  2, record 36, English, - directivity%20discrimination

Record 36,  Textual support,  French

Record 36,  Textual support,  Spanish

Record number: 36, Textual support number: 1 DEF

Discriminación ocasionada por la directividad de una antena que tiene una dirección de radiación diferente.  1, record 36, Spanish, - discriminaci%C3%B3n%20por%20directividad

Record 37,  Textual support,  English

Record number: 37, Textual support number: 1 DEF

An antenna array whose direction of maximum radiation is perpendicular to the line or plane of the array.  1, record 37, English, - broadside%20array

Record number: 37, Textual support number: 1 OBS

broadside array: term standardized by the International Electrotechnical Commission.  3, record 37, English, - broadside%20array

Record 37,  Textual support,  French

Record number: 37, Textual support number: 1 DEF

Antenne en réseau rectiligne ou plan, ou antenne constituée par une ouverture rayonnante de grandes dimensions, dont la direction du rayonnement maximal est perpendiculaire ou presque perpendiculaire à la plus grande dimension du réseau ou au plan de l'ouverture.  1, record 37, French, - antenne%20%C3%A0%20rayonnement%20transversal

Record number: 37, Textual support number: 1 OBS

antenne à rayonnement transversal : terme normalisé par la Commission électrotechnique internationale.  2, record 37, French, - antenne%20%C3%A0%20rayonnement%20transversal

Record 37,  Textual support,  Spanish

Record number: 37, Textual support number: 1 DEF

Antena que radia principalmente en las direcciones perpendiculares a una recta (en la dirección perpendicular a un plano), siendo esta recta (este plano) característica de la estructura de la antena.  1, record 37, Spanish, - antena%20de%20radiaci%C3%B3n%20transversal

Record 38,  Textual support,  English

Record number: 38, Textual support number: 1 DEF

The outward flow of radio frequency energy from an antenna.  1, record 38, English, - antenna%20radiation

Record 38,  Textual support,  French

Record number: 38, Textual support number: 1 DEF

Ensemble des rayonnements électromagnétiques émis par une antenne.  1, record 38, French, - rayonnement%20d%27antenne

Record number: 38, Textual support number: 1 OBS

rayonnement d'antenne : terme et définition uniformisés par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre.  2, record 38, French, - rayonnement%20d%27antenne

Record 38,  Textual support,  Spanish

Record 39,  Textual support,  English

Record number: 39, Textual support number: 1 OBS

Antenna radiation pattern  1, record 39, English, - co%2Dpolarised%20component

Record 39,  Textual support,  French

Record 39,  Textual support,  Spanish

Record 40,  Textual support,  English

Record number: 40, Textual support number: 1 DEF

an antenna in which a dielectric is the major component used to produce a desired radiation pattern.  4, record 40, English, - dielectric%20antenna

Record 40,  Textual support,  French

Record number: 40, Textual support number: 1 DEF

antenne, généralement à rayonnement longitudinal, dans laquelle la concentration de l'énergie rayonnée est obtenue par un diélectrique dont les dimensions, dans le sens du rayonnement, sont grandes par rapport à la longueur d'onde.  2, record 40, French, - antenne%20di%C3%A9lectrique

Record 40,  Textual support,  Spanish

Record 41,  Textual support,  English

Record number: 41, Textual support number: 1 OBS

a--is defined which depends on the angular width of the source, the antenna radiation diagram, and the permissible increase in noise temperature of the earth-station receiving antenna.  2, record 41, English, - interference%20zone

Record 41,  Textual support,  French

Record number: 41, Textual support number: 1 OBS

la -- [...] dépend de l'ouverture d'angle de la source, du diagramme de rayonnement de l'antenne et de l'augmentation de température de bruit admissible pour l'antenne de réception de la station terrienne. [trad]  2, record 41, French, - zone%20de%20brouillage

Record 41,  Textual support,  Spanish

Record 42,  Textual support,  English

Record number: 42, Textual support number: 1 DEF

In contrast to primary scattering, any scattering in which radiation is scattered more than once before reaching the eye, antenna, or other sensing element.  2, record 42, English, - multiple%20scattering

Record 42,  Textual support,  French

Record number: 42, Textual support number: 1 DEF

Rediffusions successives du rayonnement à l'intérieur du milieu diffusant.  2, record 42, French, - diffusion%20multiple

Record 42,  Textual support,  Spanish

Record 43,  Textual support,  English

Record number: 43, Textual support number: 1 DEF

An antenna array in which the radiation pattern of the fixed beam is determined by the phase relationships of the signals that excite the radiating elements.  3, record 43, English, - phased%2Darray%20antenna

Record number: 43, Textual support number: 1 OBS

With adjustable phase shifters operating under computer control, the beam can be scanned in azimuth or elevation without mechanical movements.  3, record 43, English, - phased%2Darray%20antenna

Record 43,  Textual support,  French

Record number: 43, Textual support number: 1 DEF

Antenne à faisceau orientable constituée par une antenne en réseau dont on fait varier les phases d'alimentation des différents éléments rayonnants.  4, record 43, French, - antenne%20r%C3%A9seau%20%C3%A0%20commande%20de%20phase

Record number: 43, Textual support number: 2 DEF

Antenne réseau dont le faisceau est pointé essentiellement par les déphasages relatifs des alimentations des éléments rayonnants. C'est le type d'antenne du satellite canadien RADARSAT.  5, record 43, French, - antenne%20r%C3%A9seau%20%C3%A0%20commande%20de%20phase

Record number: 43, Textual support number: 1 OBS

Il suffit d'un balayage approprié des phases pour faire de ce réseau une antenne à balayage électronique.  6, record 43, French, - antenne%20r%C3%A9seau%20%C3%A0%20commande%20de%20phase

Record number: 43, Textual support number: 2 OBS

antenne en réseau à commande de phase : terme et définition normalisés par l'AFNOR.  6, record 43, French, - antenne%20r%C3%A9seau%20%C3%A0%20commande%20de%20phase

Record number: 43, Textual support number: 3 OBS

Terme uniformisé par le Comité d'uniformisation de la terminologie spatiale - CUTS  7, record 43, French, - antenne%20r%C3%A9seau%20%C3%A0%20commande%20de%20phase

Record 43,  Textual support,  Spanish

Record 44,  Textual support,  French

Record 44,  Textual support,  Spanish

Record 45,  Textual support,  English

Record 45,  Textual support,  French

Record number: 45, Textual support number: 1 OBS

Source(s): DSTM [Direction des services de traduction ministériels] - Communications.  1, record 45, French, - faisceau%20de%20rayonnement%20d%27antenne

Record 45,  Textual support,  Spanish

Record 46,  Textual support,  English

Record number: 46, Textual support number: 1 DEF

A radiation pattern obtained in the Fraunhofer region of an antenna.  1, record 46, English, - Fraunhofer%20pattern

Record 46,  Textual support,  French

Record 46,  Textual support,  Spanish

Record 47,  Textual support,  English

Record number: 47, Textual support number: 1 DEF

The spatial distribution of the polarizations of a field vector excited by an antenna taken over its radiation sphere.  1, record 47, English, - polarization%20pattern

Record 47,  Textual support,  French

Record 47,  Textual support,  Spanish

Record 48,  Textual support,  English

Record number: 48, Textual support number: 1 DEF

The volume in space that is irradiated by a given radar; for a continuous-ware radar it is equivalent to the antenna radiation pattern; for a pulse radar it is a function of the cross-section area of the beam of the antenna and the pulse length of the transmitted pulse.  1, record 48, English, - radar%20volume

Record 48,  Textual support,  French

Record 48,  Textual support,  Spanish

Record 49,  Textual support,  English

Record number: 49, Textual support number: 1 OBS

Angle errors due to the modulation of the signal by the target are a function not only of the frequency and percentage of modulation, but also of the beam width of the radar itself.  2, record 49, English, - angle%2Derror%20measurement

Record number: 49, Textual support number: 2 OBS

The direction of the target is determined by measuring the angle at which the returning wavefront arrives at the radar. The common method for accomplishing this measurement is with a directive antenna, i. e., one with a narrow radiation pattern.  3, record 49, English, - angle%2Derror%20measurement

Record 49,  Textual support,  French

Record number: 49, Textual support number: 1 OBS

Calcul de l'erreur de position de la cible que donne l'écho à l'aide de l'angle d'arrivée du front de signal.  2, record 49, French, - %C3%A9cartom%C3%A9trie

Record 49,  Textual support,  Spanish

Record 50,  Textual support,  English

Record number: 50, Textual support number: 1 DEF

The horizontal sector containing the main beam of the antenna radiation and including the direction required for service.  1, record 50, English, - service%20sector

Record 50,  Textual support,  French

Record number: 50, Textual support number: 1 DEF

Secteur horizontal contenant le faisceau principal de l'antenne et comprenant la direction requise pour l'exploitation.  1, record 50, French, - secteur%20de%20service

Record 50,  Textual support,  Spanish

Record 51,  Textual support,  English

Record 51,  Textual support,  French

Record number: 51, Textual support number: 1 OBS

Tracé de la courbe de l'intensité de rayonnement ou de la densité de puissance sortant d'une antenne en fonction des coordonnées angulaires.  1, record 51, French, - relev%C3%A9%20de%20diagramme

Record 51,  Textual support,  Spanish

Record 52,  Textual support,  English

Record number: 52, Textual support number: 1 CONT

direct calibration and other facilities permit the plotting of antenna radiation patterns.  1, record 52, English, - plotting%20of%20antenna%20radiation%20pattern

Record 52,  Textual support,  French

Record number: 52, Textual support number: 1 CONT

l'étalonnage direct et le confort de manipulation permettent la détermination de diagrammes d'antenne.  1, record 52, French, - d%C3%A9termination%20de%20diagrammes%20d%27antenne

Record 52,  Textual support,  Spanish

Record 53,  Textual support,  French

Record 53,  Textual support,  Spanish