Efficient FXLMS algorithm with simplified secondary path models.

Ardekani, Iman; Sharifzadeh, Hamid Reza; Rehman, Saeed; Abdulla, Waleed H.

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Date
2015
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
Permanent link to Research Bank record:
https://hdl.handle.net/10652/2979
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.
Keywords:
FxLMS algorithm, root locus analysis, secondary path modeling, active noise control (ANC), ANC, echo reduction, feedback reduction
ANZSRC Field of Research:
091301 Acoustics and Noise Control (excl. Architectural Acoustics)
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