zpch1

Chebyshev analog filter

Calling Sequence

[poles,gain]=zpch1(n,epsilon,omegac)

Arguments

:n integer (filter order) : :epsilon real : ripple in the pass band ( 0<epsilon<1) : :omegac real : cut-off frequency in Hertz : :poles resulting filter poles : :gain resulting filter gain :

Description

Poles of a Type 1 Chebyshev analog filter. The transfer function is given by :

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