4D Imaging Radar

4D imaging radar provides real-time 360-degree perception for autonomous vehicles by measuring range, azimuth (horizontal angle), elevation (vertical angle), and velocity simultaneously. Unlike traditional radar that provides 2D or 3D data, 4D radar adds elevation information and enhanced velocity resolution, creating more detailed point clouds that enable better object classification and tracking. The technology uses advanced antenna arrays and signal processing to achieve high resolution in all four dimensions, providing comprehensive environmental awareness.

The 360-degree coverage enables complete situational awareness around the vehicle, detecting objects in all directions including those that might be missed by cameras or LiDAR due to weather conditions or lighting. 4D radar works effectively in rain, fog, snow, and darkness where optical sensors struggle, making it essential for reliable autonomous driving. The technology can distinguish between different object types (vehicles, pedestrians, cyclists), track multiple objects simultaneously, and provide velocity information critical for predicting trajectories. This makes 4D imaging radar a key sensor for Level 3 and Level 4 autonomous vehicles, providing redundant perception capabilities that enhance safety and reliability in diverse driving conditions.