Title :
Offset compensation scheme for analogue LMS adaptive FIR filters
Author_Institution :
Sch. of Inf. Syst., East Anglia Univ., Norwich, UK
fDate :
6/18/1992 12:00:00 AM
Abstract :
Offset voltage in the adapting part of an analogue LMS adaptive filter, caused by clock feedthrough, causes serious degradation of the convergence and error performance of the filter. A compensation scheme for the clock-induced offset is described. Simulation results at both algorithmic and circuit level are presented.
Keywords :
adaptive filters; analogue circuits; error compensation; least squares approximations; switched capacitor filters; analogue LMS adaptive FIR filters; clock feedthrough; clock-induced offset; convergence degradation; error performance; offset compensation scheme; simulation; switched capacitor integrator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920760
