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1. An optical sensing technology used to determine the position, velocity, or other characteristics of distant objects by analysis of pulsed laser light reflected from their surfaces.
2. The equipment used in such detection. In both senses also called laser radar.


an instrument that detects the position or motion of objects and which operates similarly to a radar, but which uses laser radiation rather than microwaves


(ˈlaɪ dɑr)

a device similar to radar but using pulsed laser light instead of radio waves to detect particles and varying conditions in the atmosphere.
[1960–65; presumably li (ght1) + (ra) dar]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lidar - a measuring system that detects and locates objects on the same principle as radar but uses light from a laser; a potential technology for detecting air turbulence that can affect aircraft
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
References in periodicals archive ?
Full waveform Lidar systems record the entire waveform of the reflected laser pulse, not only the peaks as produced by the discrete multiple return Lidar systems.
In their new system, the team used a type of LIDAR called frequency-modulated continuous-wave (FMCW) LIDAR, which they felt would ensure their imager had good resolution with lower power consumption, Behroozpour says.
LiDAR equipment can now scan the ground from hand held units to small aircraft.
In 2008-2010 the LiDAR data were captured for all territory of Lithuania.
Alan King, trainer of Lidar "He got his act together at Haydock last time and showed us what he regularly does at home in the mornings.
The basic measurement made by a lidar instrument is the distance between the sensor and a target surface, obtained by determining the elapsed time between the emission of a laser pulse and the arrival of the reflection of that pulse (the return signal) at the sensor's receiver.
Both SAR and LiDAR are active sensors in that they transmit their own energy.
Sanborn) has completed mobile LiDAR data collection for two corridors in Glacier National Park and one corridor in Yellowstone National Park totaling approximately 40 linear miles.
Out of the top 13 original equipment manufacturers (OEMs), 7 are working on automated driving passenger vehicles using a LiDAR.
In order to assist our Asian distributor to address these issues and help address the local market that has shown considerable interest in the Company's Lidar system, the Company has established a representative office in Shanghai to provide local technical support to our distribution partner.