A Variable Mode QR Decomposition Adaptive Filtering Algorithm for Acoustic Echo Cancellation

J.B. Li; C. Lu; Y. Zhou

doi:10.4028/www.scientific.net/AMM.556-562.3839

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562A Variable Mode QR Decomposition Adaptive...

A Variable Mode QR Decomposition Adaptive Filtering Algorithm for Acoustic Echo Cancellation

Abstract:

This paper studies a new QR decomposition adaptive filtering algorithm for acoustic echo cancellation (AEC). Based on the p-TA-QR-LS algorithm [1] and an efficient voice activity detection technique, the proposed algorithm can distinguish the significant and insignificant input data periods. The resultant variable mode p-TA-QR-LS algorithm can work between two modes (p=1and N) and is thus suitable for AEC application where reusing significant input data can enhance convergence and the computation cost can be saved when the input is relatively weak.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

3839-3843

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.3839

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Online since:

May 2014

Authors:

J.B. Li*, C. Lu, Y. Zhou

Keywords:

Acoustic Echo Cancellation, Adaptive Filter, QR Decomposition

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References

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