🔷 LiDAR (Light Detection and Ranging)
What it is:
A sensing technology that uses laser light pulses to measure distances and create high-resolution 3D maps of the environment.
How it works:
- Emits laser beams
- Measures the time taken for light to bounce back
- Calculates distance and shapes in 3D
Key Features:
- High precision and resolution
- Effective for detailed mapping
- Works best in clear weather
Use Cases:
- Autonomous vehicles (detecting road objects)
- Robotics (navigation)
- Drones (terrain mapping)
- Smart cities (traffic monitoring)
🔷 RADAR (Radio Detection and Ranging)
What it is:
A system that uses radio waves to detect objects, measure their distance, speed, and direction.
How it works:
- Emits radio signals
- Receives reflected waves from objects
- Calculates distance and motion (Doppler effect)
Key Features:
- Works well in low visibility (fog, rain, night)
- Lower resolution than LiDAR
- Better for tracking moving objects
Use Cases:
Military and security surveillance
ADAS systems (detecting vehicles in all weather)
Aviation (altitude and aircraft tracking)
Maritime navigation