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CROSS-POLARIZATION ANTENNA [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-07-26

English

Subject field(s)
  • Radio Transmission and Reception
CONT

Trends in... satellite systems in the near future [will include] Re-use of frequency band by means of cross-polarization techniques and narrow beam antenna.

French

Domaine(s)
  • Émission et réception radio
CONT

Ce satellite [Symphonie] possède deux antennes d'émission à couverture limitée. L'une couvre la zone euroafricaine, l'autre la côte Est des États-Unis et du Canada

Key term(s)
  • antenne à couverture limitée

Spanish

Save record 1

Record 2 2006-03-22

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Spacecraft
  • Remote Sensing
CONT

Extended (Low) Mode [;] ~125 km nadir offset [;] swath width: 75km [;] range resolution (1): 25 m [;] azimuth resolution: 28 m [;] looks (2): 4 [;] incidence angle (3): 10-20º.

OBS

At these incidence angles, the antenna operates beyond its optimum range, therefore some minor degradation of the image can be expected. The spatial resolution is the same as standard beams. This imaging mode will be available in co-polarization, cross-polarization and dual-polarization.

OBS

extended low incidence beam mode: term officially approved by the RADARSAT-2 Terminology Approval Group (ROAG).

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Engins spatiaux
  • Télédétection
CONT

Mode faisceaux prolongés (faible incidence) [:] décalage: ~125 km du nadar[;] largeur de fauchée: 75 km [;] résolution en portée (1) 25 m [;] résolution en azimut: 28 m [;] visées (2): 4 [;] angle d'incidence (3): 10-20°.

OBS

À ces angles d'incidence, l'antenne fonctionne hors de ses capacités optimales, des dégradations mineures peuvent donc apparaître dans l'image. Ce type de faisceau sera disponible en co-polarisation, en polarisation croisée ou en double-polarisation.

OBS

mode faisceaux prolongés à faible incidence : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 2

Record 3 1975-03-11

English

Subject field(s)
  • Radio Transmission and Reception
CONT

trends in... satellite systems in the near future [will include] Re-use of frequency bands by means of cross-polarization techniques and narrow beam antenna.

French

Domaine(s)
  • Émission et réception radio
CONT

[...] l'utilisation d'antenne à pinceau fin à bord du satellite; cela permet d'augmenter la puissance isotrope rayonnée équivalente sur les régions à fort trafic téléphonique.

Spanish

Save record 3

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