| 一种具有双瞬变因子的LMS自适应滤波算法 |
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| 引用本文： | 曾召华,刘贵忠,马社祥.一种具有双瞬变因子的LMS自适应滤波算法[J].现代雷达,2000,22(1):34-38. |
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| 作者姓名： | 曾召华 刘贵忠 马社祥 |
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| 作者单位： | 西安交通大学信息与通信工程研究所,西安,710049 |
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| 基金项目： | 国家自然科学基金和陕西省自然科学基金资助项目(项目编号：69872030，98X08)． |
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| 摘 要： | 作者在文献〖４〗中提出了一种改进的瞬变步长ＳＰＬＭＳ自适应滤波算法。本文在ＳＰＬＭＳ算法的基础上，进一步提出一种基于瞬变步长、瞬变平滑因子的双瞬变ＳＰＬＭＳ算法－ＤＳＰＬＭＳ算法。该算法除具有常规ＬＭＳ算法简单的优点外，还具有更高的起始收敛速率、更小的权失调噪声和更大的抑噪能力．文中重点讨论了瞬变步长、瞬变平滑因子的变化特性。计算机仿真结果支持了理论分析。
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| 关 键 词： | 自适应滤波算法 信号处理 瞬变因子 SPLMS |
| 修稿时间： | 1999-04-20 |
An Adaptive LMS Algorithm with Two Transient Factors |
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| Zeng Zhaohua,Liu Guizhong,Ma Shexiang.An Adaptive LMS Algorithm with Two Transient Factors[J].Modern Radar,2000,22(1):34-38. |
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| Authors: | Zeng Zhaohua Liu Guizhong Ma Shexiang |
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| Abstract: | A raodified adaptive algorithm of smooth pseudo LMS (SPLMS) was presented in reference 4] by authors of this paper. Forwardly, based on SPLMS, a modified adaptive algorithm with two transient factors (DSPLMS) is proposed in this paper. Besides the advantages of LMS,it has faster beginning convergence rate, lower misadjustment of weight and better robustness against noise and disturbance. This paper lays special emphases on the transformation of two transient factors. The theoretical analysis is confirmed by computer simulation rasults. |
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| Keywords: | adaptive filter misadjustment noise convergence rate LMS transient factor |
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