Filter is a useful signal can pass while the frequency of the unwanted signal suppression (or attenuation) of the electronic devices.

引言滤波器是一种能使有用信号顺利通过而同时对无用频率信号进行抑制(或衰减)的电子装置。

youdao

Filter is a useful signal can pass while the frequency of the unwanted signal suppression (or attenuation) of the electronic devices.

引言滤波器是一种能使有用信号顺利通过而同时对无用频率信号进行抑制(或衰减)的电子装置。

youdao