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。
But to the CW pulse signal with changing carrier wave frequency, common filter cannot achieve narrowband filter, whereas broadband filter cannot reach the request of the signal-noise ratio.
可是，对于载波频率不断变化的CW脉冲信号，普通的滤波器难以实现窄带跟踪滤波，而宽带滤波又不能达到提高信噪比的要求。
To use separation of goal signal and wave filter, the guided precision can be improved.
采用目标信号分离与滤波可进一步提高制导精度。
Taking the noise elimination of the outlet temperature signal of hydrocracking reactor as an example, the effect of the model parameters of the wave filter for noise elimination was compared.
在分析线性滤波器原理的基础上，建立了化工系统动态信号的最优线性滤波器的数学模型，并以加氢裂化反应器出口温度信号的除噪为例比较了滤波器模型参数对去噪效果的影响。
In the receiver, through the appropriate RC or LC network can filter out square wave and high frequency modulation signal for simulating the reduction form.
在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
In the receiver, through the appropriate RC or LC network can filter out square wave and high frequency modulation signal for simulating the reduction form.
在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
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