In the a high frame rate (HFR) ultrasonic imaging system, the weighting process by limited diffraction beams on echo signal takes the most of the calculation time for constructing an image.
在高帧率超声成像算法中，对回波信号进行有限衍射波束加权处理占用了成像中大部分计算时间。
Based on studying the generating and receiving circuit of ultrasonics, this dissertation analyzes that the key to improve measuring accuracy is how to seek the starting time of ultrasonic echo signal.
在研究了超声波信号的产生、接收电路的基础上，分析了提高测量精度的关键在于如何精确地寻找到超声波回波信号的起点时刻。
A method about acquisition and processing of ultrasonic echo signal in liquid level measurement is introduced.
介绍了一种在液位测量中超声回波信号的采集与处理方法。
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