LiDAR (Light Detection and Ranging ) is a remote sensing technology which uses the pulse from a laser to collect measurements . LiDAR works in a similar way to Radar and Sonar but uses light waves from a laser, instead of radio or sound waves .Lidar can be used for distance measurement ,to measure distance in 3d clouds.For lasee scanning of 3D Models,

Lidar Working Principle

• Emission of a laser pulse
• Record of the back scattered signal
• Distance measurement (Time of travel x speed of light)
• Retrieving plane position and altitude
• Computation of precise echo position

1. emitting a laser pulse on a surface
2. catching the reflected laser back to the LiDAR pulse source with sensors
3. measuring the time laser travelled
4. calculating the distance from source with the formula “Distance = (Speed of light x Time elapsed) / 2

This process is repeated a million times by LiDAR instruments and ends up by producing a complex map of the surveyed area : a 3D point cloud.

Applications of Lidar

• SLAM
• 3D Mapping
• Vehicle & Robot Automation for Self Navigation

List of Student Projects on Lidar

• Arduino Map generation using LIDAR
• Obstacle Avoidance
• SLAM Implementation using LIDAR and Matlab
• Path planning Robot using Lidar and Image Processing
• Self Driving Car using LIDAR and Image Processing