4D Radar Applications

4D imaging millimeter-wave radar refers to radar technology that can provide both spatial (3D) and temporal (the fourth dimension, time) information about objects in its field of view. This technology is commonly used in various levels of autonomous driving systems (L2, L3, and L4) to enhance the perception and autonomous decision-making capabilities of vehicles. Here's how it can be applied at different levels.

The key advantages of millimeter-wave radar in these applications include its ability to operate effectively in various weather conditions (such as rain, fog, and snow), its capacity to provide accurate distance and velocity measurements, and its ability to work in conjunction with other sensor technologies like lidar and cameras to provide a comprehensive perception system for the autonomous vehicle. Overall, 4D imaging millimeter-wave radar plays a vital role in improving the safety and reliability of autonomous driving systems across different levels of automation.

Level 2 Partial Automation:4D imaging radar can be used to monitor the speed and distance of vehicles ahead with far fewer false detection. It helps in maintaining a safe following distance and can provide collision warnings.

Level 3 Conditional Automation: With 3 or more 4D imaging radar, the perception algorithms can simutaneously minitor collusion threats coming from front and sides of the vehicle.

Level 4 High Automation: 4D imaging radar can detect and track objects such as vehicles, pedestrians, and cyclists in real-time. It's crucial for making decisions to avoid collisions and navigate through complex traffic scenarios. Radar can be used to detect cross-traffic at intersections, helping the vehicle to safely navigate through intersections. Radar can also assist in identifying nearby obstacles during parking maneuvers and can provide precise distance information.

Heavy trucks: Millimeter wave radar is a cost efficient and rugged preception sensor for large vehicles such as trucks to cover multiple large blind-spot areas and operate in dusty environments.