DocumentCode
1488118
Title
Tracking capabilities of the LMS adaptive filter in the presence of gain variations
Author
Bergmans, Jan W M
Author_Institution
Hitachi Ltd., Tokyo, Japan
Volume
38
Issue
4
fYear
1990
fDate
4/1/1990 12:00:00 AM
Firstpage
712
Lastpage
714
Abstract
The tracking capabilities of the least mean square (LMS) adaptive filter when it is used to identify a nonstationary channel suffering from gain variations are studied. An analytical solution for the steady-state lag error is obtained, and its validity is verified by means of simulations. Depending on the magnitude and bandwidth of the variations, the total steady-state error is found either to increase monotically as a function of the adaptation parameter μ or to exhibit a global minimum for a finite, nonzero value of μ
Keywords
adaptive filters; least squares approximations; tracking; LMS adaptive filter; adaptation parameter; bandwidth; gain variations; global minimum; least mean square; magnitude; nonstationary channel; simulations; steady-state lag error; Adaptive filters; Additive noise; Analytical models; Bandwidth; Error analysis; Fluctuations; Least squares approximation; Steady-state; White noise; Working environment noise;
fLanguage
English
Journal_Title
Acoustics, Speech and Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
0096-3518
Type
jour
DOI
10.1109/29.52711
Filename
52711
Link To Document