Generalized spectral transformations for the approximation of even order elliptic filters
D. Báez-López, J. Margalli-Daza, L.P. Huelsman · 2002
An extension of Darlington's (1978) algorithm to obtain even order class B and C elliptic filter functions is described. The results agree very well with those produced by other methods but the computational complexity is greatly reduced. The complete algorithm is amenable for microcomputer or pocket programmable calculator implementation.>