24 GHz radar sensors for automotive applications

Automotive radar systems using integrated 24 GHz radar sensor techniques are currently under development (see Klotz, M. and Rohling, H., 5th International Conference on Radar Systems, 1999). This paper describes a radar network consisting of four sensors distributed behind the front bumper of an experimental car. Each single sensor measures the target range with high accuracy. A multilateration technique is used in the radar network for precise azimuth angle estimation even in multiple-target situations. The system performance is shown in real traffic situations for parking aid, stop-and-go and blind spot applications.