How Does LIDAR Work In ADAS

07 March 2023

LIDAR (Light Detection and Ranging) is a remote sensing technology that uses laser beams to measure distances and generate precise 3D maps of a vehicle's surroundings. In Advanced Driver Assistance Systems (ADAS), LIDAR is used as a key sensor to detect and identify objects in the environment, including other vehicles, pedestrians, and obstacles.

LIDAR works by emitting laser beams from a rotating sensor located on the vehicle, which bounce off objects in the surrounding environment and returns to the sensor. The time it takes for the laser beams to return to the sensor is used to calculate the distance between the vehicle and the object, creating a 3D map of the environment around the vehicle.

In ADAS applications, LIDAR is used in combination with other sensors such as cameras and radar to provide a comprehensive view of the environment around the vehicle. LIDAR provides high-precision measurements of distance and position, which can help improve the accuracy and reliability of ADAS systems, particularly in challenging lighting or weather conditions.

By using LIDAR, ADAS systems can detect and identify potential hazards in real time, allowing the vehicle to take evasive action or alert the driver to potential dangers. This technology is essential in enabling advanced safety features such as automatic emergency braking, lane departure warning, and adaptive cruise control. LIDAR is also a key technology for the development of autonomous vehicles, as it provides the detailed and precise mapping necessary for safe navigation and obstacle avoidance.