Variable regularisation parameter sign subband adaptive filter

Variable regularisation parameter sign subband adaptive filter
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DOI:
10.1049/el.2010.2406
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发表时间:
2010-11
影响因子:
1.1
通讯作者:
J. Ni;F. Li
J. Ni;F. Li
中科院分区:
工程技术4区
文献类型:
--
作者:
J. Ni;F. Li

文献摘要

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提出了一种用于声学回声消除的符号子带自适应滤波器(SSAF),该滤波器通过在滤波器抽头权向量受限的条件下,最小化子带L1范数和后验误差向量而得到。此外,可变正则化参数(VRP)的引入,以提高性能的SSAF。仿真结果验证了所提出的VRP-SSAF对双端通话具有良好的鲁棒性。
A sign subband adaptive filter (SSAF) for acoustic echo cancellation is proposed, which is derived by minimising the L1-norm of the subband a posteriori error vector subject to a constraint on the tap-weight vector of the filter. In addition, a variable regularisation parameter (VRP) is introduced to improve the performance of the SSAF. Simulation results are presented to verify the good robustness of the proposed VRP-SSAF against double-talk.