A method for determining one or more relative directions as a determining or target bearings as well as an apparatus for carrying out the method

摘要

A method for determining one or more relative directions (21a to 21c) as a determining or target bearings, wherein sound waves (15) by a receiver arrangement (12) receiving the sound waves (15) by means of the receiver arrangement (12) received signals (16a to 16c) is determined and from the received signals (16a to 16c) direction signals (20a to 20c) in each case one to the receiver arrangement (12) relative the direction (21a to 21c) are determined and made from any direction signal (20a to 20c) a of the relative direction (21a to 21c) of the direction signal (20a to 20c) is assigned to the magnitude spectrum (46) or a of the magnitude spectrum (46) spectrum derived is determined, characterized in that from the frequency range (66) of each magnitude spectrum (46) or each of the magnitude spectrum (46) derived spectrum frequency bands (76a to 76h) are determined, the amplitude values (71) of the in one of the frequency bands (76a to 76h) occurring frequencies (68a to 68j) as a frequency band amplitude value (78a to 78h) of the respective frequency band (76a to 76h) are combined and the relative direction (21a to 21c), the a magnitude spectrum (46) or any one of the magnitude spectrum (46) is associated with the spectrum derived, is determined as a determining if the this relative the direction (21a to 21c) associated magnitude spectrum (46) and / or the of the magnitude spectrum (46) spectrum derived at least a number of frequency band amplitude values (78a to 78h) above a threshold value (31) above a predetermined detection number (33) is.