An iterative method for equalization of multichannel acoustic systems robust to system identification errors

机译：对系统识别错误具有鲁棒性的均衡多通道声学系统的迭代方法

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摘要

The use of an iterative method for equalization of acoustic systems, the channel estimates of which are obtained from supervised system identification (SSI), is investigated. An optimally-stopped weighted conjugate gradient (OS-WCG) algorithm is presented. In the presence of system identification errors (SIEs), a peak of weighted direct-to-reverberant ratio (WDRR) in the iterative process is shown. Then a method to estimate the iteration index of the peak is provided. Finally, a stopping condition for the iteration is proposed. Evaluation results show that using OS-WCG, an improvement up to 20 dB in C50 and 0.141 s in T30 can be achieved.

机译：研究了使用迭代方法来均衡声学系统，该系统的通道估计值是从监督系统识别（SSI）中获得的。提出了一种最优停止加权共轭梯度算法。在存在系统标识错误（SIE）的情况下，显示了迭代过程中加权直接混响比（WDRR）的峰值。然后提供了一种估计峰的迭代指数的方法。最后，提出了迭代的停止条件。评估结果表明，使用OS-WCG，可以实现C50最高20 dB的改善和T30最高0.141 s的改善。

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来源
《2016 IEEE International Workshop on Acoustic Signal Enhancement》|2016年|1-5|共5页
会议地点 Xian(CH)
作者
Wancheng Zhang; Patrick A. Naylor;
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作者单位

School of Information and Electronics, Beijing Institute of Technology;

Department of EEE, Imperial College London;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
Iterative methods; Speech; Acoustics; Speech processing; Indexes; Microphones; Speech recognition;

机译：迭代方法;语音;声学;语音处理;索引;麦克风;语音识别;

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专利

1. Partially coupled gradient-based iterative identification methods for multivariable output-error moving average systems [J] . Feifei Wang, Feng Ding International Journal of Modelling, Identification and Control . 2016,第4期

机译：多变量输出误差移动平均系统的基于局部耦合梯度的迭代识别方法
2. Multichannel affine and fast affine projection algorithms for active noise control and acoustic equalization systems [J] . Bouchard M. IEEE Transactions on Speech and Audio Proceessing . 2003,第1期

机译：用于主动噪声控制和声学均衡系统的多通道仿射和快速仿射投影算法
3. Blind identification and equalization of multichannel FIR systems in unbalanced noise environments [J] . Roberto Guidorzi, Roberto Diversi, Umberto Soverini Signal processing . 2007,第4期

机译：不平衡噪声环境中多通道FIR系统的盲识别和均衡
4. An iterative method for equalization of multichannel acoustic systems robust to system identification errors [C] . Wancheng Zhang, Patrick A. Naylor IEEE International Workshop on Acoustic Signal Enhancement . 2016

机译：多通道声学系统均衡的迭代方法鲁棒到系统识别误差
5. Control oriented H-infinity system identification based robust control design: An iterative procedure. [D] . Bahri, Anju. 1997

机译：基于控制的H无限系统识别的鲁棒控制设计：迭代过程。
6. Iterative Analog–Digital Multi-User Equalizer for Wideband Millimeter Wave Massive MIMO Systems [O] . Roberto Magueta, Daniel Castanheira, Pedro Pedrosa, 2020

机译：宽带毫米波大规模MIMO系统的迭代模拟-数字多用户均衡器
7. Equalization of Multichannel Acoustic Systems in Oversampled Subbands [O] . Gaubitch ND, Naylor PA 2009

机译：过采样子带中多声道声学系统的均衡化

An iterative method for equalization of multichannel acoustic systems robust to system identification errors

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