AUTOMOTIVE RADAR SYSTEM USING A SEGMENT-BY-SEGMENT PHASE DIFFERENCE EVALUATION METHOD

摘要

The invention relates to an automotive radar system (12) which detects distances and angular positions of objects (48) in relation to a motor vehicle (10) by sequentially directing an overlap (16, ..., 30; 66, 70, 78) of an antenna lobe (62, 68, 74) and of an angle of reception range (64, 72, 76) in different spatial directions (32, ..., 46), determining for every spatial direction (32,...,46) the angular position of an object (48) present within the overlap (16, ..., 30; 66, 70, 78), and combining results from different overlaps (16, ..., 30; 66, 70, 78) to give an overall result which is differentiated in terms of spatial directions (32, ..., 46). The inventive radar system is characterized by determining the angular position of an object (48) detected in an overlap (16, ..., 30; 66, 70, 78) by a phase difference method. The invention also relates to a method for determining distances and angular positions using said radar system (12).