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.
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