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NOISE-EQUIVALENT SIGMA-NOUGHT [1 record]

Filter results by subject field Alphabetical list of terms

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Alphabetical list of terms

Record 1 2007-01-31

English

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

A measure of the sensitivity of [a] system to areas of low radar backscatter.

CONT

The Noise Equivalent Sigma Naught field for RADARSAT products (Data Quality Summary Record, byte 1343) is behaving oddly. The value is calculated from the data, as the average noise level within a frequency range a bit outside of the actual backscattered spectrum. Though the noise level might change slightly between scenes, it's expected to remain close to the theoretical -21 dB estimate.

OBS

noise equivalent sigma nought; noise equivalent sigma naught; noise equivalent sigma zero; NESZ: terms and abbreviation officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

Key term(s)
  • noise equivalent sigma-zero
  • noise equivalent sigma-naught
  • noise equivalent sigma-nought
  • noise-equivalent sigma-naught
  • noise-equivalent sigma-nought
  • noise-equivalent sigma zero
  • noise-equivalent sigma naught
  • noise-equivalent sigma-nought
  • noise-equivalent sigma nought

French

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

Mesure de la sensibilité d'un système aux régions de faible rétrodiffusion radar.

OBS

NESZ : acronyme spécifique à RADARSAT et uniformisé par le Comité d'uniformisation de la terminologie spatiale (CUTS).

OBS

équivalent de bruit sigma-zéro; NESZ : terme et abréviation uniformisés par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Key term(s)
  • équivalent de bruit sigma zéro

Spanish

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