Title :
On symmetric lattice digital-filter synthesis
Author :
Sarcinelli, M. ; Diniz, P.S.R. ; Caloba, L.P.
Author_Institution :
Fed. Univ. of Rio de Janeiro, Brazil
Abstract :
The proposed symmetric lattice structures are shown to be free of zero-input limit cycles and by appropriately modifying them, constant-input limit cycles can also be eliminated. A procedure for efficiently synthesizing the modified symmetric lattices starting from the original Gray-Markel realizations is outlined. A comparison of the several realizations discussed with respect to output roundoff noise is made, and a degraded performance of the proposed structure for lowpass filters is observed. A solution to the lowpass design by introducing the fast/slow structures is proposed
Keywords :
digital filters; filtering and prediction theory; limit cycles; low-pass filters; Gray-Markel realizations; digital-filter synthesis; fast/slow structures; lowpass filters; output roundoff noise; symmetric lattice structures; zero input limit cycles elimination; Degradation; Digital filters; Electrostatic precipitators; Finite wordlength effects; Lattices; Limit-cycles; Noise reduction; Passive filters; Symmetric matrices; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.102049
