scipy.signal.
cheb2ap#
- scipy.signal.cheb2ap(N, rs)[source]#
- Return (z,p,k) for Nth-order Chebyshev type II analog lowpass filter. - The returned filter prototype has attenuation of at least - rsdecibels in the stopband.- The filter’s angular (e.g. rad/s) cutoff frequency is normalized to 1, defined as the point at which the attenuation first reaches - rs.- See also - cheby2
- Filter design function using this prototype