Scilab Function
Last update : 12/01/2004
zpbutt - Butterworth analog filter
Calling Sequence
- [pols,gain]=zpbutt(n,omegac)
Parameters
-
n: integer (filter order)
-
omegac: real (cut-off frequency in Hertz)
-
pols: resulting poles of filter
-
gain: resulting gain of filter
Description
computes the poles of a Butterworth analog
filter of order n and cutoff frequency omegac
transfer function H(s) is calculated by H(s)=gain/real(poly(pols,'s'))
Author
F. Delebecque INRIA