ANGLE ESTIMATION AND AMBIGUITY RESOLUTION OF RADAR SENSORS FOR MOTOR VEHICLES WITH A LARGE ANTENNA ARRAY

摘要

The invention relates to an angle-resolving radar sensor for motor vehicles, comprising an antenna assembly having multiple antennas (10, 12) designed for receiving, which are arranged in different positions (yi) in a direction (y) in which the radar sensor is angle resolving, and comprising a control and evaluation device (30), which is designed for an operating mode in which at least one antenna (22) of the radar sensor that designed for transmitting transmits a signal which is received by multiple antennas (10, 12) of the radar sensor that are designed for receiving, wherein, in said operating mode for an individual estimation of an angle (θ) of a radar target for respective evaluation channels (i), which correspond to different configurations of transmission-end and receiving-end antennas (22, 10, 12), the control and evaluation device (30) is designed to determine respective individual distances (di) of the radar target and to use the individual distances (di) in the estimation of the angle (θ) of the radar target. The invention also relates to a method for this purpose.