If input sigmal is supwrimpsed with high-frequency noise use a low-pass filter in the input signal line.
若输入信号伴随高频干扰，应在线里用高频过滤器。
The power line channel noise is simulated by MATLAB and the attenuation is simulated through the channel transmission module of FIR filter.
利用MATLAB及用fir滤波器做信道的传输函数模型对信道噪声和复衰减特性分别进行了建模。
It is difficult to design and build an effective power line EMI filter for switched mode power supply without distinguishing the differential or common mode component from conducted noise.
诊断开关电源传导干扰的主要性质，分别测量共模干扰和差模干扰，是正确设计电源EMI滤波器的第一步。
The on-line filter in the same way as average powers can be designed with given program. The power is the filtering factor designed on the basis of noise property.
用该程序可以设计出与加权平均形式相同的在线数字滤波器，所加的权是根据噪声的性质设计的归一化的滤波因子。
Compared to the other structure filter, this CSF have better line and noise characteristic.
这种滤波器和其他结构滤波器相比，可以获得更高的线性度和更好的噪声特性。
A new fast digital filter of on line eddy current testing system for decreasing the effect of high frequency noise was researched.
针对涡流在线检测系统中的各种高频噪声影响，设计了快速去噪滤波算法。
A new fast digital filter of on line eddy current testing system for decreasing the effect of high frequency noise was researched.
针对涡流在线检测系统中的各种高频噪声影响，设计了快速去噪滤波算法。
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