High Reliability Collision Avoidance Radar Using FM-Pulse Doppler Method

The vehicular collision avoidance millimeter-wave radar that uses an FM-pulse Doppler method is proposed. This radar is constituted with the FM-CW radar method and the pulse Doppler radar method. This radar method has combined the advantages that the precision of the measurements of distance and speed of the target that the FM-CW radar method provides, and the low target mis-recognition probability that the pulse Doppler radar method provides. The millimeter-wave radar using this method was produced using comparatively simple circuits The experimental data that was obtained with this radar and with the FM-CW radar are compared with each other. The effectiveness of the FM-pulse Doppler method was investigated using data obtained from on the road environment using a target vehicle and some objects.