嗨,我想得到一些关于如何在椭圆滤波器上指定振幅阈值的澄清。
这就是我到目前为止所做的
fmin = 20; % minimum passband frequency in Hz (High Gamma)
fmax = 30; % maximum passband frequency in Hz (High Gamma)
Rs = 20; % stopband attenuation in dB
Rp = 1; % passband ripples in dB
% for High gamma band
[order, Wn] = ellipord([fmin/(f