DocumentCode
1090982
Title
Use of oversampled Sigma - Delta modulator for analogue adaptive FIR filters based on LMS algorithm
Author
Huang Qiuting ; Moschytz, G.S.
Author_Institution
Sch. of Inf. Syst., East Anglia Univ., Norwich, UK
Volume
28
Issue
8
fYear
1992
fDate
4/9/1992 12:00:00 AM
Firstpage
751
Lastpage
753
Abstract
An adaptive FIR filter configuration which uses a Sigma - Delta modulator as a front end is proposed for implementing the LMS algorithm in analogue form. The oversampled Sigma - Delta modulator converts the filter input into a binary sequence, which can be readily delayed and multiplied with a shift register and on/off switching. Computer simulations show very good performance for such a hardware efficient configuration.
Keywords
active filters; adaptive filters; least squares approximations; modulators; switched capacitor filters; LMS algorithm; SC filters; analogue adaptive FIR filters; binary sequence; hardware efficient configuration; oversampled Sigma - Delta modulator; shift register; sigma-delta modulator;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19920475
Filename
133114
Link To Document