This paper introduces an ultrasonic ranging method based on analyzing the envelope of echo.

介绍了一种基于回波包络分析的高精度超声波测距方法.

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The ultrasonic ranging is used to design the plane location system with a high accuracy.

将超声波测距技术应用于物体的平面定位中,设计具有精确度较高的平面定位系统.

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Ultrasonic Ranging has been reversing in the automotive collision avoidance system has been widely used.

超声波测距已经在汽车倒车防撞系统中得到了广泛的应用.

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