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Adaptive Combination of Proportionate NSAF with the Tap-Weights Feedback for Acoustic Echo Cancellation

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Abstract

To obtain fast convergence rate and low steady-state error in acoustic echo cancellation, a convex combination scheme of the improved proportionate normalized subband adaptive filter algorithm is proposed. Instead of the gradient method in the conventional combination theory, the mixing parameter is adapted by using the normalized gradient method which makes it more robust to the variations of subband error signals. Also, to implement a smooth transition from the fast filter to the accurate filter, a cyclic feedback of the overall tap-weights giving to all component filters is applied.

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Acknowledgments

This work was partially supported by National Science Foundation of P.R. China (Grants: 61271340, 61571374 and 61433011), and the Fundamental Research Funds for the Central Universities (Grant: SWJTU12CX026).

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Authors and Affiliations

  1. Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Ministry of Education, Chengdu, China

    Yi Yu & Haiquan Zhao

  2. School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China

    Yi Yu & Haiquan Zhao

Authors
  1. Yi Yu
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  2. Haiquan Zhao
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Correspondence to Haiquan Zhao.

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Yu, Y., Zhao, H. Adaptive Combination of Proportionate NSAF with the Tap-Weights Feedback for Acoustic Echo Cancellation. Wireless Pers Commun 92, 467–481 (2017). https://doi.org/10.1007/s11277-016-3552-x

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  • DOI: https://doi.org/10.1007/s11277-016-3552-x

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