| 基于去相关NLMS算法的自适应回波抵消 |
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| 引用本文： | 王振力,张雄伟,杨吉斌,韩彦明.基于去相关NLMS算法的自适应回波抵消[J].应用科学学报,2006,24(1):21-24. |
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| 作者姓名： | 王振力 张雄伟 杨吉斌 韩彦明 |
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| 作者单位： | 1. 解放军理工大学电子信息工程系,江苏,南京,210007
2. 空军驻沪宁地区军事代表室,江苏,南京,210013 |
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| 摘 要： | 在NLMS算法的基础上,从语音信号相关性的角度出发,提出了一种去相关NLMS算法(DC-NLMS).该算法收敛速度快,稳态失调小,计算量与NLMS算法相当,克服了APA算法收敛速度快但计算量大的缺陷.计算机仿真结果表明,DC-NLMS算法在自适应回波抵消中的综合性能要优于NLMS算法、APA算法以及文献7]中的算法.
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| 关 键 词： | 自适应回波抵消 NLMS算法 仿射投影算法 去相关 |
| 文章编号： | 0255-8297（2006）01-0021-04 |
| 收稿时间： | 2004-08-26 |
| 修稿时间： | 2004-08-262004-11-01 |
Adaptive Echo Cancellation Based on Decorrelation NLMS Algorithm |
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| WANG Zhen-li,ZHANG Xiong-wei,YANG Ji-bin,HAN Yan-ming.Adaptive Echo Cancellation Based on Decorrelation NLMS Algorithm[J].Journal of Applied Sciences,2006,24(1):21-24. |
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| Authors: | WANG Zhen-li ZHANG Xiong-wei YANG Ji-bin HAN Yan-ming |
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| Institution: | 1 . Department of Electronic Information Engineering, PLAUST, Nanjing 210007, China ; 2. Military Delegation of Airforce at Hu-Ning Region, Nanjing 210013, China |
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| Abstract: | Based on NLMS,this paper proposes a decorrelation NLMS algorithm(DC-NLMS) by employing auto-correlation of the input speech signal.The proposed algorithm has fast convergence speed,but small stability maladjustment with the same computational complexity as NLMS,therefore overcomes the drawback of APA.Simulation results indicate that the DC-NLMS algorithm is optimal in adaptive echo cancellation as compared with NLMS,APA,and a previously developed algorithm in the literature. |
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| Keywords: | adaptive echo cancellation NLMS algorithm APA decorrelation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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