| 摘要 |
The invention relates to a method for distance determination by means of pulse-modulated acoustic signals (3, 5), wherein the acoustic signals (5) emitted and received by the acoustic transducer are detected, wherein measured values (20) obtained in a sequence of measured values (10) are checked for exceeding an object threshold curve (23). The object threshold curve (23) is dynamically matched to the noise level of the measured values (20) by means of a noise threshold curve (22). |
