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BALAYAGE CHAMP VISION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-07-31

English

Subject field(s)
  • Sonar and Underwater Detection (Military)
  • Radar, Radio Guidance and Goniometry
  • Acoustics (Physics)
CONT

One radar that has gained popularity due to its ability to scan a large field of view is the phased array radar (PAR). [One] traditional PAR [is] known as a passive electronically scanned array (PESA). In the PESA, a single transmitter generates a high-powered signal that is transmitted through individual antenna elements. Each transmit element has an associated computer-controlled phase shifter ... that creates a directional beam by adding a phase shift to the signal from each element. The narrow beam is sequentially steered through the field of view by changing the phase at each element.

French

Domaine(s)
  • Sonar et détection sous-marine (Militaire)
  • Radar, radioguidage et radiogoniométrie
  • Acoustique (Physique)
CONT

Un radar qui a gagné en popularité en raison de sa capacité à balayer un grand champ de vision est le radar à commande de phase. [...] un radar à commande de phase traditionnelle [est appelé] ensemble passif de balayage électronique(PESA). Dans le PESA, un seul émetteur génère un signal de grande puissance qui est transmis par des éléments d’antenne individuels. Chaque élément d’émission est associé à un déphaseur [...] commandé par ordinateur qui crée un faisceau directionnel en ajoutant un décalage de phase au signal de chaque élément. Le faisceau étroit est dirigé séquentiellement à travers le champ de vision en changeant la phase à chaque élément.

Spanish

Save record 1

Record 2 2009-01-14

English

Subject field(s)
  • Remote Sensing
Key term(s)
  • field of view sweep

French

Domaine(s)
  • Télédétection

Spanish

Save record 2

Record 3 2008-08-01

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Remote Sensing
  • Spacecraft
DEF

A line composed of consecutive pixels, which is recorded by a satellite sensor during a single sweep across the field of view.

OBS

scan line: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Télédétection
  • Engins spatiaux
DEF

Ligne composée de pixels consécutifs qui est enregistrée par un capteur satellitaire durant un balayage du champ de vision.

OBS

ligne de balayage : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
  • Teledetección
  • Naves espaciales
DEF

Imagen formada por pixeles consecutivos, registrada por un sensor de satélite durante un barrido único del campo de visión.

Save record 3

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