METHOD AND APPARATUS FOR DETERMINING THE POSITION OF AN OBJECT RELATIVE TO A VEHICLE, IN PARTICULAR A MOTOR VEHICLE, FOR USE IN A DRIVER ASSISTANCE SYSTEM FOR THE VEHICLE

摘要

The invention relates to a method and an apparatus for determining the position of an object relative to a vehicle (1), in particular a motor vehicle, for use in a driver assistance system for the vehicle (1). In this case, an ultrasound sensor (3; 4) which is arranged on the vehicle (1) transmits a first ultrasound pulse, with the ultrasound pulse comprising a plurality of predetermined transmission frequencies, which lead to variation of the directional characteristic of the ultrasound sensor (3; 4). The transmitted first ultrasound pulse is reflected on the object and is received again as a first echo pulse by the transmitting ultrasound sensor (3; 4) or by some other ultrasound sensor (3; 4) which is arranged on the vehicle (1). A frequency spectrum of the first echo pulse is then determined, and a first absolute value of a relative offset angle of the object is determined depending on the frequency spectrum of the first echo pulse and the directional characteristics.