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IMAGING LIDAR [2 records]

Record 1 2007-01-31

English

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

This research evaluates the utility of several remote the utility of several remote sensing data types for the purpose of mapping forest structure and related attributes at a regional scale. Several sensors were evaluated, including...(iii) Airborne Data Acquisition and Registration(ADAR) a sensor with high spatial resolution;(iv) Airborne Visible-Infrared Imaging Spectrometer(AVIRIS), a sensor with high spectral resolution; and... a lidar sensor that directly measures the height and canopy structure of forest vegetation.

OBS

Spectral resolution refers to the ability of a sensor to define finer wavelength intervals. Thus, the finer the spectral resolution, the narrower the wavelength range for a given channel or band.

OBS

high spectral resolution sensor: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

Key term(s)
  • high-spectral resolution sensor

French

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

Ces travaux de recherche avaient pour objectif d'évaluer l'utilité de plusieurs types de données de télédétection à des fins de cartographie de la structure de la forêt et de ses attributs, à une échelle régionale. Plusieurs capteurs ont été évalués [dont] un capteur à haute résolution spatiale, (iv) AVIRIS, un capteur à haute résolution spectrale et [...] un capteur lidar qui mesure directement la hauteur et la structure du couvert végétal de la forêt.

OBS

La résolution spectrale désigne la capacité d'un capteur à utiliser des fenêtres de longueurs d'onde plus étroites. Ainsi, plus la résolution spectrale est fine, plus les fenêtres des différents canaux du capteur sont étroites.

OBS

capteur à haute résolution spectrale : 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 1

Record 2 2006-01-24

English

Subject field(s)
  • Remote Sensing
CONT

The imaging LIDAR prototype comprises a compact optical head, an electronic box, and is controlled via a PC. The transmitter produces 150 W peak power at 905 nm wavelength with two semiconductor lasers at 500 Hz rate. The light is coupled into optical fibres and directed to the target via a triplet lens. The backreflected light is collected with a receiver lens and fed through optical fibres to 18 avalanche photodiode detectors(APD).

French

Domaine(s)
  • Télédétection
DEF

Capteur actif imageur utilisant comme source émettrice un laser.

Spanish

Save record 2

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