The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明：应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
This article shows the universal result of the frequency structure, which is connected with the chopped signal of the sine wave by convolution, this has guidance meaning to filter design.
本文以卷积为工具给出了正弦交流斩波信号谱结构的普适结果，这对滤波器的设计有指导意义。
Surface Acoustic Wave Filter (SAWF) is a sort of analogue device for signal processing.
声表面波器件是一种新型的模拟信号处理器件。
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