LiDAR (Light Detection and Ranging) is a remote sensing technology that uses laser pulses to measure distances and create high-resolution 3D maps. In inertial navigation (INS), LiDAR is used for terrain mapping, obstacle detection, and localization, especially in autonomous vehicles, drones, and defense applications.
How LiDAR Works in INS?
Laser Pulse Emission – A LiDAR sensor emits laser beams toward a surface.
Time-of-Flight Measurement – The system measures the time it takes for the laser to reflect back.
3D Mapping & Localization – Using INS data, LiDAR constructs precise terrain maps and assists in navigation.
Applications of LiDAR in INS
Autonomous Vehicles & Drones – Provides real-time obstacle detection and navigation assistance.
Terrain-Aided Navigation (TAN) – Used in GNSS-denied environments (e.g., tunnels, forests, urban canyons).
Defense & Surveillance – Supports target tracking and high-precision mapping.
Advantages of LiDAR in INS
High-Precision Mapping – Creates detailed 3D maps for navigation.
Works in Low-Light Conditions – Unlike cameras, LiDAR is effective day and night.
Enhances INS Accuracy – Provides position updates to correct INS drift.
