回波处理电路用于检测由人体组织反射的超声信息，对转换成的电信号进行解调输出。
Receiving circuits detect the wave reflected by human tissue and output electric signal that has been demodulated.
该系统具有较高的灵活性和可移植性，可用于多种超声信号的采集与处理。
The proposed system can be applied in various ultrasonic signal acquisition and processing because of its...
根据超声信号的特点，可以利用相干检测理论对信号进行处理，从而达到滤除噪声、提高分辨力的目的。
According to the characteristics of ultrasonic signal, it can be used to deal with correlation technique to filter noise and improve resolution.
本文首先简要地介绍了医学电子学中人体超声信号的检测、处理及其特征提取所采用的方法及其技术特点。
Here medical Electronic methods and techniques are mainly introduced to detect, analyse and extract feature for human medical ultrasound signals.
设计了基于数字信号处理器的超声电机驱动控制系统，以数字波合成器作为超声信号发生器，以全桥逆变器为功放。
The USM driving control system based on digital signal processor was designed. The digital wave synthesizer was used as the signal generator, and the full-bridge inverter was used in power amplifier.
在超声反射回波的数学模型基础上，利用小波滤波方法对超声信号进行预处理，提取强噪声背景中的弱回波信号。
This paper attempts to preprocess ultrasonic signal by wavelet filtering based on the mathematical model of the ultrasonic echo, extracts weak echoes from signal with high noise background.
通过综合比较，在互相关理论的基础上提出了一种改进的极性相关算法来处理超声信号。
After comprehensive comparing, an improved polarity correlated arithmetic is put forward based on the cross-correlation theory.
通过综合比较，在互相关理论的基础上提出了一种改进的极性相关算法来处理超声信号。
After comprehensive comparing, an improved polarity correlated arithmetic is put forward based on the cross-correlation theory.
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