... Line Scanning Frequency 行扫描频率 line-frequency filter 电源干扰滤波器 line-frequency coil 工频电流感应加热线圈 ...
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To investigate this, I used a filter bank to obtain a set of signals locked to the incoming line frequency.
为了研究这一问题，我使用了一个滤波器组，来获得一系列固定在市电频率的信号。
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。
An adaptive line enhancer based on the above notch filter extracts the fundamental frequency signal from noisy data.
采用自适应谱线增强器从含有噪声的数据中提取出基频信号。
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