scipy.signal.sos2zpk

scipy.signal.sos2zpk(sos)

Return zeros, poles, and gain of a series of second-order sections

Parameters:

sos : array_like

Array of second-order filter coefficients, must have shape (n_sections, 6). See sosfilt for the SOS filter format specification.

Returns:

z : ndarray

Zeros of the transfer function.

p : ndarray

Poles of the transfer function.

k : float

System gain.

Notes

New in version 0.16.0.