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

被引：0
作者：
Yi Yu
Haiquan Zhao
机构：
[1] Ministry of Education,Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle
[2] Southwest Jiaotong University,School of Electrical Engineering
来源：
Wireless Personal Communications | 2017年 / 92卷
关键词：
Acoustic echo cancellation; Proportionate normalized subband adaptive filter; Adaptive combination; Normalized gradient; Tap-weights feedback;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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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收藏
页码：467 / 481
页数：14
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