| 摘要 |
<p>The method involves transmitting signals (11) from a distance sensor (5) e.g. ultrasonic sensor, and receiving an echo (17) from an object as direct echo of the distance sensor. Distance between a motor vehicle and the object is computed from a time span between transmitted signals and received echo from the object. The direct echo of the distance sensor is eliminated for the computation of distance to the object, if a cross echo or the direct echo of another distance sensor (2) is larger than a threshold value for the cross echo or direct echo of the latter distance sensor. The distance sensors are selected from ultrasonic sensors, infrared sensors, radar detectors, capacitive sensors or light detection and ranging sensors.</p> |
