Title :
Digital LDI ladder filters using lattice equivalents and wave concepts
Author :
Green, B.D. ; Turner, L.E.
Author_Institution :
Dept. of Electr. Eng., Calgary Univ., Alta., Canada
fDate :
1/1/1990 12:00:00 AM
Abstract :
A lossless-discrete-integrator (LDI) based digital filter that implements a bilinear transformed elliptic transfer function is presented. The filter is designed by converting a ladder prototype into a lattice prototype and realizing the resulting lattice impedance reflectances with LDI elements. The resulting structure is amenable to compact bit-serial implementation and requires only as many multiplication operations as the filter order
Keywords :
band-pass filters; digital filters; equivalent circuits; ladder networks; network synthesis; transfer functions; LDI elements; bandpass filters; bilinear transformed elliptic transfer function; compact bit-serial implementation; digital filter; ladder filters; ladder prototype; lattice equivalents; lattice impedance reflectances; lattice prototype; lossless-discrete-integrator; multiplication operations; wave concepts; Band pass filters; Capacitance; Digital filters; Flow graphs; Impedance; Inductors; Lattices; Prototypes; Topology; Voltage;
Journal_Title :
Circuits and Systems, IEEE Transactions on
