Title :
Self-error feedback in recursive digital filters
Author :
Surakampontorn, W. ; Sobhy, M.I.
Author_Institution :
University of Kent, Electronics Laboratories, Canterbury, UK
fDate :
10/1/1983 12:00:00 AM
Abstract :
A low-noise direct-form digital filter is introduced, where the error feedback path does not require extensive hardware and the accumulator wordlength is equal to the data wordlength. The method of realisation is a modification of the contents of the lookup table of the ROM-accumulator (ROM/ACC) structure. The contents of the ROM already contain the error feedback, and no additional hardware is necesary.
Keywords :
digital filters; feedback; ROM-accumulator; accumulator wordlength; coefficient roundoff noise; data wordlength; error feedback path; low-noise direct-form digital filter; recursive digital filters; self error feedback;
Journal_Title :
Electronic Circuits and Systems, IEE Proceedings G
DOI :
10.1049/ip-g-1:19830037
