Improving performance of active noise control systems in the presence of uncorrelated periodic disturbance at error microphone

Muhammad Tahir Akhtar, Wataru Mitsuhashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The disturbance picked up by error microphone can significantly degrade the steady-state performance of active noise control (ANC) systems. Previously a cascading algorithm has been proposed, where a supporting adaptive filter is used for removing the uncorrelated disturbance from the error signal of filtered-x least mean square (FxLMS) algorithm. We modify this algorithm to improve the performance in terms of fast convergence speed and reduced steady-state fluctuations. We modify the desired response of the supporting filter which gives us better control to tune its parameters. This modification allows to use modified FxLMS (MFxLMS) algorithm to adapt ANC filter, which results in improved convergence speed. Computer simulations are carried out which demonstrate the effectiveness of the proposed method. This improved performance is achieved at an increased computational complexity.

Original languageEnglish
Title of host publication2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages2041-2044
Number of pages4
DOIs
Publication statusPublished - Oct 26 2009
Event2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan
Duration: May 24 2009May 27 2009

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
CountryTaiwan
CityTaipei
Period5/24/095/27/09

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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