zpch2

Chebyshev analog filter

Calling Sequence

[zeros,poles,gain]=zpch2(n,A,omegar)

Arguments

:n integer : filter order : :A real : attenuation in stop band ( A>1) : :omegar real : cut-off frequency in Hertz : :zeros resulting filter zeros : :poles resulting filter poles : :gain Resulting filter gain :

Description

Poles and zeros of a type 2 Chebyshev analog filter gain is the gain of the filter

H(s)=gain*`poly`_(`zeros`_,'s')/`poly`_(poles,'s')