syntfil[Chebyshev_asnew] - compute the new value of the stopband attenuation
Calling sequence:
Chebyshev_asnew(order, Os, ap)
Parameters:
order - order of the Chebyshev approximation [-]
Os - stopband frequency of normalized lowpass (NLP) [1/s]
ap - passband ripple [dB]
Parameter order must be positive integer. Parameters Os a ap must be positive number, where Os > 1 .
Description:
Example:
> | with(syntfil): |
Specification of NLP
> | Os,ap,as:=2,3,25; |
Compute the order of Chebyshev approximation
> | cx:=ChebyshevNLPOrder(Os,ap,as); |
> | Chebyshev_asnew(cx); |
See also: