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LIDAR: Light Detection & Ranging

Description: A remote-sensing technique that uses a laser light source to probe the characteristics of a target

Recommended Product: Quantel Brilliant

  • Atmosphere control
    1. Density
    2. Temperature
    3. Wind
    4. Pollution...
  • Distance,
    speed measurement
    1. Rayleigh, Mie scattering
    2. Raman scattering
    3. Fluorescence
    4. Doppler shift

LIDAR: Principle

  • The laser light, back-scattered by particules, is collected by a telescope.
  • The time delay between emission and reception represents the distance (time of flight).
  • The intensity is an image of the particules density
  • Laser/telescope unit is mounted on a mobile system

LIDAR: Typical set-up

LIDAR: Applications


Anhui Inst. Of technology, China

  • Localisation of pollution emission
  • Measure of the limit layer of the atmosphere
  • Measure of the diffusion of pollution clouds
  • Ozone hole



  • Aerosol measurements



  • “Nadezhda”, Russian ship sailing in Singapore area
    1. Measure of the atmosphere around the world

    • Laser Brilliant mounted on emission/reception telescope

  • LIDAR in operation

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    LIDAR: Commercial Systems

    • Elight
    • Leosphere
    • Polis
    • Raymetrics