高压水射流反射声音信号实时采集与处理_业务中心-原上草论文网 关键词：高压水射流；反射声信号；信号通讯 [gap=1558]Key words:high-pressure water-jet; reflection sound signals; signal communication
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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.
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.
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