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LIDAR

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Definitions Edit

LIDAR (an acronym for LIght Detection And Ranging)

[is] a remote sensing technique that uses laser pulses to determine elevation with high accuracy, usually from an aerial survey.[1]
[is a]n instrument capable of measuring distance and direction to an object by emitting timed pulses of light in a measured direction based on the time between when a pulse is emitted and when its echo is received. Three-dimensional information is computed by relating these distances and direction measurements to the location and orientation of the instrument. Airborne LIDAR instruments are used to develop three-dimensional data, such as digital elevation models, tree and building heights, and feature geometry.[2]
uses a narrow beam to transmit infrared light pulses to a target, which then travel back again. Measurement of the elapsed time of the light beam to reach the vehicle and return computes the vehicle's distance from the operator.[3]

References Edit

  1. Geospatial Information and Geographic Information Systems (GIS): An Overview for Congress, at 3.
  2. Geospatial Information: Technologies Hold Promise for Wildland Fire Management, but Challenges Remain, Glossary, at 70.
  3. Intelligent Transportation Systems: Vehicle-to-Vehicle Technologies Expected to Offer Safety Benefits, but a Variety of Deployment Challenges Exist, at 4 n.9.

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