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A Novel Multiple-Reference, Multiple-Channel, Normalized Filtered-X LMS Algorithm for Active Control of Propeller-Induced Noise in Aircraft Cabins
Blekinge Institute of Technology, Department of Signal Processing.
Blekinge Institute of Technology, Department of Signal Processing.
Blekinge Institute of Technology, Department of Signal Processing.
Blekinge Institute of Technology, Department of Signal Processing.
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1998 (English)Conference paper, (Refereed) Published
Abstract [en]

The dominating cabin noise in propeller aircraft consists essentially of strong tonal components at harmonics of the Blade Passage Frequency (BPF) of the propellers. In order to efficiently reduce such low frequency periodic noise, it is advisable to employ an Active Noise Control (ANC) system based on a feedforward controller. This paper presents a set of normalized complex Filtered-X Least-Mean-Square (FX LMS) algorithms. By using different variants of normalization factors the convergence rate, the tracking performance and the steady-state noise attenuation can be improved. The algorithms presented are based either on a single normalization factor for the whole control system (global normalized FX LMS algorithm), or several individual normalization factors (reference-individual FX LMS algorithm) or the novel actuator-individual FX LMS algorithm. The evaluation is performed on noise recorded during flight in the cabin of a Dornier 328, a twin-engine propeller aircraft.

Place, publisher, year, edition, pages
Christchurch, New Zealand: The New Zealand Acoustical Society Inc. , 1998.
Keyword [en]
active noise control, feedforward control, filtere-x LMS, normalized filtered-x LMS, aircraft
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-6263Local ID: oai:bth.se:forskinfo21617903BDD8F894C12568A3002CABB1ISBN: 0 473 05443 4 (print)OAI: oai:DiVA.org:bth-6263DiVA: diva2:833721
Conference
Inter Noise 98, Sound and Silence: Setting the Balance
Available from: 2015-06-25 Created: 2000-03-15 Last updated: 2015-06-30Bibliographically approved

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fulltext(322 kB)78 downloads
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Johansson, SvenClaesson, Ingvar
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf