请问有关滤波器的问题
时间:12-13
整理:3721RD
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用bessel filter
用到lowpass时
为什么high cutoff<low cutoff时,能够正常滤波,并且增益较大呢?
而说明中只提到When filter type is 2 (Bandpass) or 3 (Bandstop), low cutoff freq:
fl must be less than high cutoff freq: fh.
有点不明白
用到lowpass时
为什么high cutoff<low cutoff时,能够正常滤波,并且增益较大呢?
而说明中只提到When filter type is 2 (Bandpass) or 3 (Bandstop), low cutoff freq:
fl must be less than high cutoff freq: fh.
有点不明白
lowpass时候high cutoff没有用吧