zpell

zpell — lowpass elliptic filter

Calling sequence

[zeros,poles,gain]=zpell(epsilon,A,omegac,omegar)  

Parameters

epsilon : real : ripple of filter in pass band (0<epsilon<1)
A : real : attenuation of filter in stop band (A>1)
omegac : real : pass band cut-off frequency in Hertz
omegar : real : stop band cut-off frequency in Hertz
zeros : resulting zeros of filter
poles : resulting poles of filter
gain : resulting gain of filter

Description

Poles and zeros of prototype lowpass elliptic filter. gain is the gain of the filter

See also

ell1mag, eqiir

Author

F.D.