Frequency ranges for automotive radar technology
Radar is described as the ability to identify radio waves to determine the range, angle and relative velocity of objects. In modern vehicle safety systems, radar is used in conjunction with cameras, ultrasound and other sensors to obtain information about the environment of a vehicle.
There are three main types of radar technology used, which differ mainly in distance of the measurement range:
- “short range radar” (SRR):
- a maximum measurement range of up to approx. 30 m
- “mid-range radar” (MRR):
- a maximum measurement range of up to approx. 150 m
- “long range radar” (LRR):
- a maximum measurement range of up to approx. 250 m
Radar frequency by range and application
The specifications and the associated use cases are also assigned to different frequency ranges in which radar technology can be used:
| Frequency range | Use cases (examples) | Classification |
|---|---|---|
| 24.05 GHz – 24.25 GHz | Distance warning | MRR |
| Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance | MRR | |
| 76 GHz – 77 GHz | Adaptive cruise control | LRR |
| Front cross traffic alert | MRR | |
| Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance | MRR | |
| Stop-and-Go system | SRR | |
| Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance | SRR | |
| 77 GHz – 81 GHz | Not fully regulated yet | |
Table last updated on: 03/07/2024
Further information on regulation and our radar services can be found under Radar Testing. Details on other industry-relevant technologies can be found on our topic page Automotive Certification & Testing.
In case of any questions, feel free to get in touch with us directly: https://cetecomadvanced.com/en/contact/
