| 一种新的变步长ELMS算法在噪声抵消中的应用 |
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| 引用本文： | 张守勇,孙丽君,王香丽.一种新的变步长ELMS算法在噪声抵消中的应用[J].太赫兹科学与电子信息学报,2010,8(6):678-681. |
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| 作者姓名： | 张守勇 孙丽君 王香丽 |
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| 作者单位： | 河南工业大学,信息科学与工程学院,河南郑州450052 |
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| 基金项目： | 2009郑州市科技攻关资助项目 |
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| 摘 要： | 为了寻求高效快速的自适应算法,在ELMS算法基础上,提出了一种用均方误差和误差的相关性来调节步长的混合变步长ELMS（MVSS-ELMS）算法。该算法符合步长调整原则,并在抗噪性、有效性方面有了很大改善,同时具有比传统的LMS,ELMS算法收敛速度快,稳态失调小等优点。计算机仿真结果表明,新算法在自适应噪声抵消中的综合性能优于LMS及ELMS算法。
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| 关 键 词： | 自适应滤波 噪声抵消 LMS算法 ELMS算法 |
| 收稿时间： | 2010/4/13 0:00:00 |
| 修稿时间： | 2010/5/14 0:00:00 |
A new Mixed Variable Step Size ELMS algorithm and its application in ANC |
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| ZHANG Shou-yong,SUN Li-jun and WANG Xiang-li.A new Mixed Variable Step Size ELMS algorithm and its application in ANC[J].Journal of Terahertz Science and Electronic Information Technology,2010,8(6):678-681. |
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| Authors: | ZHANG Shou-yong SUN Li-jun and WANG Xiang-li |
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| Affiliation: | (School of Information Science and Engineering,Henan University of Technology,Zhengzhou Henan 450052,China) |
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| Abstract: | In order to find an efficient adaptive algorithm,a new Mixed Variable Step Size ELMS algorithm（MVSS-ELMS） based on Extended Least Mean Square（ELMS） algorithm is proposed in this paper.This new algorithm combines the mean square error and the correlation of the error to modify the step size.The new algorithm has been improved in anti-noise capacity and effectiveness for it fitting the principal of adjusting step-size;meanwhile,it has the superiority in convergence rate and steady-state compared to Least Mean Square（LMS） and ELMS.Computer simulations indicate that the performance of the new algorithm is better than that of LMS and ELMS on Adaptive Noise Cancellation（ANC）. |
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| Keywords: | adaptive filtering noise cancellation Least Mean Square algorithm Extended Least Mean Square algorithm |
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