dc.contributor.author |
Tabatabaei Ardekani, Iman |
en |
dc.contributor.author |
Abdulla, WH |
en |
dc.date.accessioned |
2012-03-29T22:34:21Z |
en |
dc.date.issued |
2011-11 |
en |
dc.identifier.citation |
International Journal of Adaptive Control and Signal Processing 25(11):1023-1037 Nov 2011 |
en |
dc.identifier.issn |
0890-6327 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/16129 |
en |
dc.description.abstract |
In the Filtered-x Least-Mean-Square (FxLMS)-based Active Noise Control (ANC), the convergence speed of the adaptation process has a direct relationship to a scalar parameter, called the step size. There is a theoretical upper-bound for the step size beyond which the system becomes unstable. However, the step size is usually set to a number smaller than its upper-bound in practice. This is because for relatively large step sizes, the adaptation process becomes very sensitive to any non-stationary change in acoustic noise. Owing to this trade-off, real-time implementation of high-performance ANC systems becomes challenging. To overcome this problem, this paper develops a novel ANC algorithm in which a recursive filter compensates for influences of the step size increase on the system performance. It is shown that this filter can efficiently increase the step size upper-bound; consequently, the performance of the system is improved. This improvement is demonstrated using computer simulation. Also, experimental results shows the preference of the proposed algorithm to the traditional FxLMS-based ANC algorithm in practice. |
en |
dc.language |
English |
en |
dc.publisher |
John Wiley & Sons, Ltd. |
en |
dc.relation.ispartofseries |
International Journal of Adaptive Control and Signal Processing |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from: http://www.sherpa.ac.uk/romeo/issn/0890-6327/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Filtered weight FxLMS adaptation algorithm: Analysis, design and implementation |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1002/acs.1257 |
en |
pubs.issue |
11 |
en |
pubs.begin-page |
1023 |
en |
pubs.volume |
25 |
en |
dc.rights.holder |
Copyright: John Wiley & Sons, Ltd. |
en |
pubs.author-url |
http://onlinelibrary.wiley.com/doi/10.1002/acs.1257/pdf |
en |
pubs.end-page |
1037 |
en |
pubs.publication-status |
Published |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
314199 |
en |
pubs.record-created-at-source-date |
2012-03-07 |
en |