4D millimeter-wave radar has become a core sensor in the field of intelligent driving.

4D millimeter-wave radar is a new type of vehicle-mounted sensor. Compared with the traditional 3D millimeter-wave radar, which detects distance, speed, and horizontal angle, it adds the dimension of vertical height detection. Through longitudinal antenna array design and multiple-input multiple-output (MIMO) technology, it breaks through the limitations of traditional radar's "planar perception" and opens up a fourth dimension of information, becoming one of the core sensors in the field of intelligent driving.