highpass_filter.py

IIR高通滤波器:wp截至频率:角频率rad/se.g.(2*pi*f)/(2*pi*fs/2)ws通过频率gpass通带抑制:常用1,3dBgstop阻带抑制:常用60，80dBftype滤波器形式:Butterworth:'butter';ChebyshevI:'cheby1';ChebyshevII:'cheby2';Cauer/elliptic:'ellip';Bessel/Thomson:'bessel'