RADAR SENSOR FOR MOTOR VEHICLES

摘要

The invention relates to a radar sensor for motor vehicles, comprising a sending and receiving part (10) that has a mixer (20) for mixing a sent signal with a received signal, an analyzing circuit (12) that is connected to an output of the mixer (20) via a direct current coupling device (22), and a compensating device (24, 30) for compensating for a direct current offset in the output signal of the mixer (20). The radar sensor is characterized in that the compensating device is divided into a course compensating device (30) in the sending and receiving part (10) and a fine compensating device (24) in the analyzing circuit (12).