Efficient FXLMS algorithm with simplified secondary path models.

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Authors
Ardekani, Iman
Sharifzadeh, Hamid
Rehman, Saeed
Abdulla, W. H.
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2015
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Conference Contribution - Paper in Published Proceedings
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Keyword
FxLMS algorithm
root locus analysis
secondary path modeling
active noise control (ANC)
ANC
echo reduction
feedback reduction
Citation
Ardekani, I.T., Sharifzadeh, H., Rehman, S.U., and Abdulla, W. (2015). Efficient FXLMS algorithm with simplified secondary path models.40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). 19-24 April. Brisbane, Qld. Australia. AASP-P8.9
Abstract
his paper extends the existing work on the root locus analysis of FxLMS algorithm by considering secondary path modeling errors. Rules for sketching FxLMS root locus are set out. An analytic convergence condition is then derived from the root locus plot. A deliberately-misaligned secondary path model is proposed to be used as the data preparation filter in the FxLMS algorithm. The proposed filter increases the computational efficiency of the algorithm, without changing its convergence behavior. The theoretical results are verified in practice by busing an experimental system.
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IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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