Clutter suppression scheme for vehicle radar

Vehicle radar receives echoes from the natural environment such as road and building. These echoes are called clutter which can be much higher than vehicle echo. It is therefore expect to improve the detection performance by summing all the radar echoes available from the vehicle. However, heavy road clutter should not be suppressed less than the vehicle echo by conventional integration schemes such as pulse integration and CFAR (Constant False Alarm Rate). Also the radar echo should include multiple vehicle targets as well as the clutter. Therefore it is not easy to detect multiple vehicle targets from heavy road clutter. In this paper, multiple targets detection with new clutter suppression scheme is discussed and the usefulness is investigated by conducting the measurement. As a result, the suggested scheme is found to suppress the heavy clutter significantly.