WU Chao, JIANG Kaiyu, WANG Xiaofei, GUO Yanmeng, FU Qiang, YAN Yonghong. A Robust Step-Size Control Technique Based on Proportionate Constraints on Filter Update for Acoustic Echo Cancellation[J]. Chinese Journal of Electronics, 2016, 25(4): 692-699. doi: 10.1049/cje.2016.06.001
Citation: WU Chao, JIANG Kaiyu, WANG Xiaofei, GUO Yanmeng, FU Qiang, YAN Yonghong. A Robust Step-Size Control Technique Based on Proportionate Constraints on Filter Update for Acoustic Echo Cancellation[J]. Chinese Journal of Electronics, 2016, 25(4): 692-699. doi: 10.1049/cje.2016.06.001

A Robust Step-Size Control Technique Based on Proportionate Constraints on Filter Update for Acoustic Echo Cancellation

doi: 10.1049/cje.2016.06.001
Funds:  This work is supported by the National Natural Science Foundation of China (No.11161140319, No.91120001, No.61271426), the Strategic Priority Research Program of the Chinese Academy of Sciences (No.XDA06030100, No.XDA06030500), the National High Technology Research and Development Program of China (863 Program) (No.2012AA012503), and the CAS Priority Deployment Project (No.KGZD-EW-103-2).
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  • Corresponding author: FU Qiang (corresponding author) received the Ph.D. degree in electronic engineering from Xidian University, Xi'an, in 2000. From 2001 to 2002, he was working as a senior research associate in Center for Spoken Language Understanding (CSLU), OGI School of Science and Engineering at Oregon Health & Science University, Oregon, USA. From 2002 to 2004, he was working as senior postdoctoral research fellow in Department of Electric and Computer Engineering, University of Limerick, Ireland. He is currently a professor in Institute of Acoustics, Chinese Academy of Sciences, China. His research interests are in speech analysis, microphone array processing, far-distant speech recognition, audio-visual signal processing, machine learning for signal processing, etc. Dr. Fu Qiang is a member of IEEE Signal Processing Society.
  • Received Date: 2014-05-04
  • Rev Recd Date: 2014-08-08
  • Publish Date: 2016-07-10
  • One of the main difficulties in Acoustic echo cancellation (AEC) is that the filter adaptation needs to vary according to different situations such as near-end interferences and echo path changes. In this paper, we propose a robust step-size control algorithm in frequency domain. The proposed method is based on the optimization of the square of the bin-wise a posteriori error. Constraint on the filter update is applied, which contributes to robustness to near-end interferences of the algorithm. The learning rate formula is derived first and then the relationship between the proposed algorithm and a robust statistics based approach is revealed. The method is extended to the Multidelay block frequency domain adaptive filter (MDF) so as to meet the demand of low delay in practical application. Moreover, the values of the constraints are designed to be updated proportionately to improve the convergence property. Simulation results demonstrate the superiority of the proposed algorithm.
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