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DIAGRAMME RADAR [6 records]

Record 1 2022-12-01

English

Subject field(s)
  • Statistical Graphs and Diagrams
CONT

Radar chart is also known as spider chart or star plot because it looks like a spider's web or stars. Radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative and qualitative variables represented on axes starting from the same point, origin.

French

Domaine(s)
  • Diagrammes et graphiques (Statistique)
DEF

Représentation des données d’un caractère statistique qualitatif à partir d’une grille en forme de faisceau de demi-droites de même origine divisées en unités de mesure et où les effectifs des données sont représentés par des points reliés entre eux par des segments de manière à former un polygone.

OBS

Dans un diagramme en toile d’araignée, il y a autant d’axes que de modalités. Chaque axe, qui part d’un même point, représente une caractéristique quantifiée.

Spanish

Campo(s) temático(s)
  • Diagramas y gráficos estadísticos
Save record 1

Record 2 2007-01-31

English

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

[An application that] performs a radiometric balancing on synthetic aperture radar data to compensate for non-uniform illumination in the range direction due to the antenna pattern.

CONT

Antenna pattern correction. The brightness of the image is affected by the antenna gain variation where the near range will receive maximum power while the far range will receive minimum power. This effect produces an image that varies in intensity (tone) along the range direction across the image. The antenna pattern effect is expressed as the energy returned to the radar and decreases dramatically as the range distance increases. Antenna pattern correction is applied to produce a uniform average brightness across the imaged swath.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Télédétection
DEF

Application qui exécute un équilibrage radiométrique des données d’un radar à synthèse d’ouverture pour compenser l'éclairement non uniforme dans la direction de portée causé par le diagramme d’antenne.

CONT

Application des corrections radiométriques suivantes, si nécessaire: correction du diagramme d’antenne; correction de la chute de gain en distance radiale [...]

Spanish

Campo(s) temático(s)
  • Guía radárica, radioguía y radiogoniometría
  • Teledetección
Save record 2

Record 3 2003-02-28

English

Subject field(s)
  • Remote Sensing
  • Spacecraft
CONT

At least one transponder for use as an active point calibration target with the following capability: measurement of the radiated radio-frequency power to allow the characterization of, primarily, the SAR antenna azimuth pattern....

OBS

SAR: synthetic aperture radar.

Key term(s)
  • synthetic aperture radar antenna azimuth pattern

French

Domaine(s)
  • Télédétection
  • Engins spatiaux
OBS

RSO : radar à synthèse d’ouverture.

Key term(s)
  • diagramme azimutal de l'antenne du radar à antenne synthétique
  • diagramme azimutal de l'antenne du radar à synthèse d’ouverture

Spanish

Save record 3

Record 4 1990-09-07

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Air Traffic Control

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Circulation et trafic aériens

Spanish

Save record 4

Record 5 1989-10-11

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 5

Record 6 1976-06-19

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 6

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