lidar
Sign in to saveLidar (, an acronym of light detection and ranging or laser imaging, detection, and ranging, often stylized LiDAR) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. Lidar may operate in a fixed direction (e.g., vertical) or it may scan directions, in a special combination of 3D scanning and laser scanning.
Article
39 sectionsContents
- History and etymology
- Theory
- Components
- Laser
- Scanner and optics
- Photodetector and receiver electronics
- Position and navigation systems
- Sensor
- Classification
- Applications
- Agriculture
- Airport Operations
- Archaeology
- Autonomous vehicles
- Ecology and conservation
- Forestry
- Geology and soil science
- Atmosphere
- Flood forecasting
- Military
- Mining
- Physics and astronomy
- Rock mechanics
- THOR
- Robotics
- Spaceflight
- Surveying
- Transport
- Wind farm optimization
- Solar photovoltaic deployment optimization
- Video games
- Physical security
- Other uses
- Variants
- Alternative technologies
- See also
- References
- Further reading
- External links
Lidar (, an acronym of light detection and ranging or laser imaging, detection, and ranging, often stylized LiDAR) is a method for determining ranges by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. Lidar may operate in a fixed direction (e.g., vertical) or it may scan directions, in a special combination of 3D scanning and laser scanning.
thumb|Lidar-derived image of Marching Bears Mound Group, Effigy Mounds National Monument, [[United States]] thumb|upright|A frequency addition source of optical radiation (FASOR) used at the [[Starfire Optical Range for lidar and laser guide star experiments is tuned to the sodium D2a line and used to excite sodium atoms in the upper atmosphere.]] thumb|upright|This lidar may be used to scan buildings, rock formations, et cetera, to produce a 3D model. The lidar can aim its laser beam in a wide range: its head rotates horizontally; a mirror tilts vertically. The laser beam is used to measure the distance to the first object on its path.