A New Switching QR Decomposition Adaptive Filtering Algorithm for Acoustic Echo Cancellation

Yi Zhou; Q. Li; T. Q. Zhang

doi:10.4028/www.scientific.net/AMM.303-306.1077

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 303-306A New Switching QR Decomposition Adaptive...

A New Switching QR Decomposition Adaptive Filtering Algorithm for Acoustic Echo Cancellation

Abstract:

This paper proposes a new adaptive filtering algorithm based on the p-TA-QR-LS algorithm [1]. With a coefficient-derivative-based switching scheme, the new algorithm can work between two modes (p=1 and N) and achieve overall optimum convergence performance. The resultant switching p-TA-QR-LS algorithm is thus particularly suitable for acoustic echo cancellation (AEC) where both fast convergence rate and low steady-state estimate error are desired. Experiments are conducted to verify its improved overall convergence performance.

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Periodical:

Applied Mechanics and Materials (Volumes 303-306)

Pages:

1077-1080

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.303-306.1077

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Online since:

February 2013

Authors:

Yi Zhou, Q. Li, T. Q. Zhang

Keywords:

Acoustic Echo Cancellation, Adaptive Filter, QR Decomposition

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References

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