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ASPECT ANGLE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-12-08

English

Subject field(s)
  • Tactical Operations (Air Forces)
  • Operations (Air Forces)
  • Aircraft Piloting and Navigation
  • Aircraft Maneuvers
DEF

The angle between the longitudinal axis of the target, projected rearward, and the line of sight to the interceptor measured from the tail of the target.

OBS

An aspect angle is also measured in direction right or left of the target's flight path.

OBS

aspect angle: term and definition officially approved by the Defence Terminology Standardization Board.

French

Domaine(s)
  • Opérations tactiques (Forces aériennes)
  • Opérations (Forces aériennes)
  • Pilotage et navigation aérienne
  • Manœuvres d'aéronefs
DEF

Angle formé par l'axe longitudinal de la cible, projeté vers l'arrière, et la ligne de visée jusqu'à l'intercepteur, et mesuré à partir de l'arrière de la cible.

OBS

Un angle de relèvement constant est indiqué de la droite ou de la gauche selon la trajectoire de vol de la cible.

OBS

angle de relèvement constant : terme et définition uniformisés par le Conseil de normalisation de terminologie de la défense.

Spanish

Save record 1

Record 2 2007-01-31

English

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

Description of the geometric orientation in the horizontal plane of an object in the scene with respect to the illuminating wavefront.

CONT

The aspect angle ... can have a significant influence on the appearance of radar imagery, especially when features in the scene have an organized linear structure, such as agricultural crops or geological structures. When a radar's illumination is oriented perpendicular to geologic features such as faults, lineaments and outcrops, [there is] increased contrast and shadowing of the features in the image results. This is a favourable aspect angle for the image interpreter, as terrain is enhanced. In agricultural applications, fields imaged from different aspect angles may result in different tones on the image because of row or planting direction. Aspect angle can cause imaging geometry to be either enhanced or suppressed.

OBS

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

French

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

Description de l'orientation géométrique de l'objet ciblé dans le plan horizontal par rapport à l'éclairement lumineux du front d'onde.

OBS

angle d'aspect : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

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

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