METHOD FOR DETECTING AZIMUTH BY RADAR, AZIMUTH DETECTING RADAR EQUIPMENT AND COLLISION AVOIDANCE DEVICE FOR AUTOMOBILE

摘要

PURPOSE: To realize the radar equipment, which can detect even the azimuth of a target body and the collision warming device for automobiles, which can judge the risk of collision precisely, by a simple constitution. CONSTITUTION: The first radar equipment 11, which has the first antenna pattern, detects the distance to a target body and outputs the received signal level, and the second radar equipment 12, which has the second antenna pattern that is different from the first antenna pattern and wherein a part is overlapped with the first antenna pattern, are provided. The second radar equipment detects the distance to the target body and outputs the received signal level. Furthermore, an azimuth/level-ratio-data memory means 13, which stores the relationship of the ratio of the received signal levels of the second and first antenna patterns with respect to the azimuth measured beforehand, and an azimuth computing means 14, which computes the ratio of the received signal levels and the azimuth of the target body corresponding to the computed ratio of the received signal level in accordance with the relationship stored in the azimuth/level-ratio-data memory means 13, are both provided.