History of automotive anticollision radars and final experimental results of a mm-wave car radar developed on the Technical University of Munich

The history of development of automotive radar in different countries since 1972 is described using a short comparison of radar types. A table indicates the planning of introduction of car radar in the near future according to the information provided by car companies. The purpose of the development of an automotive radar in our university was to test different signal processing procedures both for the distance and Doppler evaluation and also for a digital wavefront reconstruction to find out the angular position of a target. The block diagram, the main properties, the technical data of the radar system, the antennas used and the multiplexing of two transmitting antennas is described. Finally some experimental results, obtained under real traffic conditions are shown.