TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

laser identification, detection and ranging; LIDAR: designations standardized by NATO.  3, record 1, English, - laser%20identification%2C%20detection%20and%20ranging

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

identification, détection et télémétrie par laser; LIDAR : désignations normalisées par l'OTAN.  3, record 1, French, - identification%2C%20d%C3%A9tection%20et%20t%C3%A9l%C3%A9m%C3%A9trie%20par%20laser

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

An instrument combining a pulsed laser transmitter and optical receiver (usually a telescope) with an electronic signal processing unit used for the detection and ranging of various distant targets in the atmosphere, analogous to the principles of operation of microwave radar.  6, record 2, English, - lidar

Record number: 2, Textual support number: 1 CONT

The lidar technique operates on the same principle as radar; in fact, it is sometimes called laser radar. The principal difference between lidar and radar is the wavelength of the radiation used. Radar uses wavelengths in the radio band whereas lidar uses light, that is usually generated by lasers in modern lidar systems.  7, record 2, English, - lidar

Record number: 2, Textual support number: 2 CONT

There are three basic generic types of lidar: range finders, DIAL, and Doppler lidars. Rande finder lidars are the simplest lidars. They are used to measure the distance from the lidar instrument to a solid or hard target Differential Absorption Lidar (DIAL) is used to measure chemical concentrations (such as ozone, water vapor, pollutants) in the atmosphere. Doppler lidar is used to measure the velocity of a target High-resolution DEMs with vertical accuracy as good as 10 cm can be created with Lidar. Lidar is also better able to map bare earth elevations in forested or vegetated areas than other methods because only a single laser pulse needs to be able to reach between trees and the ground.  8, record 2, English, - lidar

Record number: 2, Textual support number: 1 OBS

lidar: Coined word for light detection and ranging.  6, record 2, English, - lidar

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Combinaison d'un laser et d'un récepteur accolés, destinée à étudier les échos produits par les particules de l'atmosphère sur des ondes visibles ou infrarouges.  5, record 2, French, - lidar

Record number: 2, Textual support number: 1 OBS

La détection se fait par des cellules optiques suivies de photomultiplicateurs.  6, record 2, French, - lidar

Record number: 2, Textual support number: 2 OBS

Le lidar sert également à la localisation et à la poursuite télémétrique d'engins dans le ciel.  7, record 2, French, - lidar

Record number: 2, Textual support number: 3 OBS

lidar : acronyme dérivé du terme anglais «light detection and ranging» qui veut dire «détection et télémétrie par ondes lumineuses».  8, record 2, French, - lidar

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Aparato de detección y localización por ondas luminosas.  1, record 2, Spanish, - lidar

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Method for investigating atmospheric behaviour using pulsed light beams (lasers).  7, record 3, English, - light%20detection%20and%20ranging

Record number: 3, Textual support number: 1 CONT

Light detection and ranging (lidar) is a technique in which a beam of light is used to make range-resolved remote measurements. A lidar [instrument] emits a beam of light, that interacts with the medium or object under study. Some of this light is scattered back toward the lidar. The backscattered light captured by the lidar's receiver is used to determine some property or properties of the medium in which the beam propagated or the object that caused the scattering. The lidar technique operates on the same principle as radar; in fact, it is sometimes called laser radar. The principal difference between lidar and radar is the wavelength of the radiation used. Radar uses wavelengths in the radio band whereas lidar uses light, that is usually generated by lasers in modern lidar systems. The wavelength or wavelengths of the light used by a lidar depend on the type of measurements being made and may be anywhere from the infrared through the visible and into the ultraviolet. The different wavelengths used by radar and lidar lead to the very different forms that the actual instruments take. The major scientific use of lidar is for measuring properties of the earth's atmosphere, and the major commercial use of lidar is in aerial surveying and bathymetry (water depth measurement). Lidar is also used extensively in ocean research and has several military applications, including chemical and biological agent detection. Lidar can also be used to locate, identify, and measure the speed of vehicles. Hunters and golfers use lidar-equipped binoculars for range finding.  6, record 3, English, - light%20detection%20and%20ranging

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Méthode d'étude du comportement de l'atmosphère à l'aide de faisceaux lumineux pulsés (lasers).  4, record 3, French, - d%C3%A9tection%20et%20t%C3%A9l%C3%A9m%C3%A9trie%20par%20ondes%20lumineuses

Record number: 3, Textual support number: 1 OBS

La détection se fait par des cellules optiques suivies de photomultiplicateurs.  5, record 3, French, - d%C3%A9tection%20et%20t%C3%A9l%C3%A9m%C3%A9trie%20par%20ondes%20lumineuses

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Método para investigar las características atmosféricas usando pulsaciones de haces de luz (láser).  1, record 3, Spanish, - lidar