Synthetic Aperture Radar Towards Automotive Applications

Today, in almost all vehicle classes automotive radars are used to increase driver safety by assistance systems like active cruise control (ACC) or blind spot detectors. Due to the continuous improvement of the measurement accuracies new fields of applications arise for radar like free space detection or localization. For example, the synthetic aperture radar (SAR) makes it possible to improve the azimuth resolution by exploiting the driveway. The quality of the image, however, depends significantly on the accuracy of the motion estimation of the antenna. Current researches in this area use the vehicle odometry to estimate the antenna position. The following paper investigates an approach to carry out synthesis of an artificial aperture by means of radar-based motion estimation.

[1]  Wolfgang Menzel,et al.  Antenna Concepts for Millimeter-Wave Automotive Radar Sensors , 2012, Proceedings of the IEEE.

[2]  Jurgen Hasch,et al.  Driving towards 2020: Automotive radar technology trends , 2015, 2015 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM).

[3]  Erwin Biebl,et al.  Application Of A Stream-Based SAR-Backprojection Approach For Automotive Environment Perception , 2018, 2018 19th International Radar Symposium (IRS).

[4]  Hermann Winner,et al.  Handbuch Fahrerassistenzsysteme, Grundlagen, Komponenten und Systeme für aktive Sicherheit und Komfort , 2009 .

[5]  Klaus C. J. Dietmayer,et al.  Instantaneous ego-motion estimation using multiple Doppler radars , 2014, 2014 IEEE International Conference on Robotics and Automation (ICRA).