Module « scipy.signal »

Fonction ellipap - module scipy.signal

Signature de la fonction ellipap

def ellipap(N, rp, rs) 

Description

ellipap.__doc__

Return (z,p,k) of Nth-order elliptic analog lowpass filter.

    The filter is a normalized prototype that has `rp` decibels of ripple
    in the passband and a stopband `rs` decibels down.

    The filter's angular (e.g., rad/s) cutoff frequency is normalized to 1,
    defined as the point at which the gain first drops below ``-rp``.

    See Also
    --------
    ellip : Filter design function using this prototype

    References
    ----------
    .. [1] Lutova, Tosic, and Evans, "Filter Design for Signal Processing",
           Chapters 5 and 12.

    .. [2] Orfanidis, "Lecture Notes on Elliptic Filter Design",
           https://www.ece.rutgers.edu/~orfanidi/ece521/notes.pdf