| 摘要 |
An ultrasonic pulse sonar (sodar) is sensitive to climatic (environmental) influences such as air temperature, pressure, humidity, wind strength and direction, temperature changes, etc.. The detector produces a model of the climatic situation in the surroundings of the vehicle from the changes in the received acoustic signal. These variables are taken into account when detecting target range and velocity using a characteristic time curve and/or used for further vehicle functions (braking, acceleration, steering, maximum speed, steering, communication, active roll stabilization). The model of the climatic situation may be produced from propagation time differences of signals that have different propagation directions on otherwise identical propagation paths. Direct (non-reflected) signals may be used. Multiple sensors having different orientations may be used.
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