A method of operating an ultrasonic sensor device for a motor vehicle, wherein in a correlated signal of an ultrasonic sensor noise maxima are suppressed, ultrasonic sensor device, driver assistance system and motor vehicle

摘要

The invention relates to a method for operating an ultrasound sensor device (5) for a motor vehicle (1) having at least one ultrasound sensor (5a), wherein an ultrasound signal (8) into an environment (4) of the ultrasound sensor (5a) by means of a transmitting device (6) Motor vehicle (1) is emitted and an echo signal (9) of the ultrasonic signal (8) from an object (3) in the environment (4) of the motor vehicle (1) by a receiving means (7) of the ultrasonic sensor (5a) is received, wherein a determination of a distance of the object (3) to the ultrasonic sensor (5a) is correlated to a received signal which corresponds to the electrical echo signal (9) with a correlation signal to a correlated signal (19), wherein the correlation signal is generated such that at least one Object characterizing maximum (11) in the correlated signal (19), which occurs by reflection on the object (3) is detected, and a plurality of in a correlate caused noise maxima (12) in the correlated signal (19) is suppressed by correlating with the correlation signal.