| 一种变步长LMS自适应滤波算法及分析 |
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| 引用本文： | 沈彩耀,李红波.一种变步长LMS自适应滤波算法及分析[J].信息工程大学学报,2006,7(2):190-192,203. |
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| 作者姓名： | 沈彩耀 李红波 |
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| 作者单位： | 信息工程大学,信息工程学院,河南,郑州,450002 |
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| 摘 要： | 文章对已有的一些变步长LMS自适应滤波算法进行了分析,在此基础上,提出了一种新的自适应算法,并且分析了参数的取值对算法性能的影响。该算法具有快速收敛性和较小的稳态误差,而且能够快速跟踪系统的变化和不受非相关噪声的影响,仿真结果表明,该算法的性能优于已有的算法。
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| 关 键 词： | 自适应滤波 变步长自适应滤波算法 LMS算法 |
| 文章编号： | 1671-0673（2006）02-0190-03 |
| 收稿时间： | 2005-11-28 |
| 修稿时间： | 2005-11-28 |
Variable Step Size LMS Adaptive Filtering Algorithm and Analysis |
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| SHEN Cai-yao,LI Hong-bo.Variable Step Size LMS Adaptive Filtering Algorithm and Analysis[J].Journal of Information Engineering University,2006,7(2):190-192,203. |
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| Authors: | SHEN Cai-yao LI Hong-bo |
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| Affiliation: | Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China |
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| Abstract: | This paper analyzes some algorithms available for variable step size LMS adaptive filtering and on the basis of it,a modified LMS adaptive filtering algorithm with variable step size is proposed,along with the performance analysis with regard to different parameters.Besides the good properties of fast convergence speed and a small steady state error,the algorithm can track changes fast in the system and is not affected by presence of uncorrected noise.Finally simulation results prove the feasibly and the performance improvements over the former ones. |
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| Keywords: | adaptive filtering variable step size adaptive filtering algorithm LMS algorithm |
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