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 passfilter.
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。
2
Removing high frequency noise pulses by a low-passfilter and Schmitt-trigger.
用一低通滤波器和施密特触发器排除高频噪声脉冲。
3
Analog synthesis often use low-passfilter to remove electronic audio generator generated by high-frequency noise.