Patent ID: 6975265

Claim:
A method for operating a radar sensor system, having a number of adjacent individual sensors ( 3 , 4 , 5 , 6 ), extensively synchronized with one another, for determining the position of a target object ( 15 ), in which in one measurement cycle, the transit time of each radar signal, emitted by an individual sensor and reflected back from the target object to this individual sensor ( 3 , 4 , 5 , 6 ), is evaluated as a direct echo ( 13 , 14 ); in the same measurement cycle, the transit time of each radar signal, emitted by one individual sensor ( 3 , 4 , 5 , 6 ) and reflected from the target object ( 15 ) to a different individual sensor ( 3 , 4 , 5 , 6 ), is evaluated as a cross echo ( 16 ); from the evaluation of the direct and cross echoes ( 13 , 14 , 16 ), at least the position of the target object ( 15 ) is determined, and a detection quality signal (Q) is ascertained; and in which after a predetermined amount of the detection quality signal (Q) for a target object ( 15 ), a calibration is performed by providing that from the deviation in the position of the target object ( 15 ) ascertained from the direct echoes ( 13 , 14 ) and its position ascertained from the cross echoes ( 16 ), a correction variable for the cross echoes ( 16 ) is ascertained.