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Aide Scilab >> Traitement du Signal > zpbutt

zpbutt

Butterworth analog filter

Calling Sequence

[pols,gain]=zpbutt(n,omegac)

Arguments

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'))

Authors

F. Delebecque INRIA

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Last updated:
Thu Mar 03 11:00:11 CET 2011