结果表明，低通滤波器的截止频率、阶数和类型对检测电路的动态响应过程、检测精度都有很大影响。

The simulation result shows that the dynamic response and the detection precision in detection circuit can be greatly influenced by the cut-off frequency, order and type of low pass filter.

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提出了一种通带截止频率连续可调的低通滤波器的新的设计方法。

In this paper, a novel design method of a passband edge frequency continuous adjustable FIR filter is presented.

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介绍了一种程控低通滤波器的实现方法，其截止频率可随输入信号频率的变化由计算机控制。

The method of designing the programmable cut-off frequency low pass filter is also shown. Under the control of a computer, its cut-off frequency may vary with the input signal frequency.

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