scipy.signal.cheby2

scipy.signal.cheby2(N, rs, Wn, btype='low', analog=0, output='ba')

Chebyshev type II digital and analog filter design.

Design an Nth order lowpass digital or analog Chebyshev type II filter and return the filter coefficients in (B,A) or (Z,P,K) form.

See also

cheb2ord.