NEXT-GENERATION SENSORS


Cognitive Imaging 4D Radar

Unlike conventional radar systems, Cognitive Imaging Radar determines not only the coordinates and the velocity of road scene objects but also their shape and type. The information supplied by the system produces a detection accuracy of up to 97.7% and, in combination with a video camera, ensures safety on the road.

Cognitive Imaging Radar can detect objects at a distance of up to 280–300 m and within an azimuth angle of over 90˚–100˚ and an elevation angle of up to 15˚–20˚ (expanding this range serves no practical purpose). Its working frequency is within the range of 76–81 GHz.

The difference between Cognitive Imaging Radar and its conventional counterparts

A conventional radar unit performs a scan of the surroundings in a single plane, while Cognitive Imaging Radar scans space in every possible direction.

Regular radar can determine the distance to objects in a road scene, their trajectory and velocity. It is not capable of determining the shape or type of objects. For example, it is practically incapable of distinguishing between a car and a pedestrian or an approaching bridge and a heavy truck. Neither can it process overlapping images, such as a pedestrian standing in front of a fence or a car. 

THE DIFFERENCE BETWEEN IMAGING RADAR AND LIDAR
The functional capacity of lidar degrades considerably in rain, snow, or dust clouds. The 4D Radar is free from such limitations.
The unique topology of the antenna array allows for vertical antenna beam scanning without any mechanical elements. This ensures the high resolution necessary for the assessment of the spatial characteristics of objects.
Cognitive Radar draws a four-dimensional map of the road scene, obtaining spatial coordinates within a single cycle of signal transmission and reception. This allows for a higher update frequency, and therefore, better detection of dynamic object parameters and efficient use of the radar power supply. It also guarantees the low overall cost of the device.
The functional comparison of Imaging 4D Radar and lidar

The video demonstrates the functional difference between Cognitive Imaging 4D Radar and lidar in cloudy and dusty conditions.

SAR TECHNOLOGY

Cognitive Imaging Radar employs the SAR (Synthetic-Aperture Radar) technology, which recreates the surroundings by producing a map based on data from the radar and the vehicle’s onboard computer. The autopilot uses this map to understand the general position of the car and the possible scenarios of motion path selection. The technology ensures that objects located close to the vehicle – such as the road shoulder, potholes, curbs, and so on – can be seen in high-quality resolution. This was a known issue for previous-generation radar and 4D-radar projects developed in other countries. It can also see and detect even pets, identify potentially hazardous road objects, and take them into account when operating a driverless car.

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Object detection accuracy
Safe driving
Reasonable price
Extended motion path selection scenario