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Imaging radar for automated driving functions
International Journal of Microwave and Wireless Technologies ( IF 1.4 ) Pub Date : 2021-04-29 , DOI: 10.1017/s1759078721000465 Hasan Iqbal , Andreas Löffler , Mohamed Nour Mejdoub , Daniel Zimmermann , Frank Gruson
International Journal of Microwave and Wireless Technologies ( IF 1.4 ) Pub Date : 2021-04-29 , DOI: 10.1017/s1759078721000465 Hasan Iqbal , Andreas Löffler , Mohamed Nour Mejdoub , Daniel Zimmermann , Frank Gruson
This work presents the implementation of a synthetic aperture radar (SAR) at 77 GHz, for automotive applications. This implementation is unique in the sense that it is a radar-only solution for most use-cases. The set-up consists of two radar sensors, one to calculate the ego trajectory and the second for SAR measurements. Thus the need for expensive GNSS-based dead reckoning systems, which are in any case not accurate enough to fulfill the requirements for SAR, is eliminated. The results presented here have been obtained from a SAR implementation which is able to deliver processed images in a matter of seconds from the point where the targets were measured. This has been accomplished using radar sensors which will be commercially available in the near future. Hence the results are easily reproducible since the deployed radars are not special research prototypes. The successful widespread use of SAR in the automotive industry will be a large step forward toward developing automated parking functions which will be far superior to today's systems based on ultrasound sensors and radar (short range) beam-forming algorithms. The same short-range radar can be used for SAR, and the ultrasound sensors can thus be completely omitted from the vehicle.
中文翻译:
用于自动驾驶功能的成像雷达
这项工作介绍了用于汽车应用的 77 GHz 合成孔径雷达 (SAR) 的实现。这种实现是独一无二的,因为它是大多数用例的仅雷达解决方案。该装置由两个雷达传感器组成,一个用于计算自我轨迹,另一个用于 SAR 测量。因此,不再需要昂贵的基于 GNSS 的航位推算系统,这些系统在任何情况下都不够精确,无法满足 SAR 的要求。此处提供的结果是从 SAR 实施中获得的,该实施能够在从目标测量点开始在几秒钟内提供处理后的图像。这是使用雷达传感器完成的,雷达传感器将在不久的将来上市。因此,由于部署的雷达不是特殊的研究原型,因此结果很容易重现。SAR 在汽车行业的成功广泛使用将是朝着开发自动泊车功能迈出的一大步,这将远远优于当今基于超声波传感器和雷达(短程)波束形成算法的系统。相同的短程雷达可用于 SAR,因此可以从车辆中完全省去超声波传感器。
更新日期:2021-04-29
中文翻译:
用于自动驾驶功能的成像雷达
这项工作介绍了用于汽车应用的 77 GHz 合成孔径雷达 (SAR) 的实现。这种实现是独一无二的,因为它是大多数用例的仅雷达解决方案。该装置由两个雷达传感器组成,一个用于计算自我轨迹,另一个用于 SAR 测量。因此,不再需要昂贵的基于 GNSS 的航位推算系统,这些系统在任何情况下都不够精确,无法满足 SAR 的要求。此处提供的结果是从 SAR 实施中获得的,该实施能够在从目标测量点开始在几秒钟内提供处理后的图像。这是使用雷达传感器完成的,雷达传感器将在不久的将来上市。因此,由于部署的雷达不是特殊的研究原型,因此结果很容易重现。SAR 在汽车行业的成功广泛使用将是朝着开发自动泊车功能迈出的一大步,这将远远优于当今基于超声波传感器和雷达(短程)波束形成算法的系统。相同的短程雷达可用于 SAR,因此可以从车辆中完全省去超声波传感器。