| 一种基于多尺度小波变换的自适应滤波新算法 |
| |
| 引用本文： | 唐建锋,张登玉,罗湘南.一种基于多尺度小波变换的自适应滤波新算法[J].通信技术,2008,41(12). |
| |
| 作者姓名： | 唐建锋 张登玉 罗湘南 |
| |
| 作者单位： | 衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008 |
| |
| 基金项目： | 湖南省自然科学基金
，
衡阳师范学院青年骨干教师项目
|
| |
| 摘 要： | 将多尺度小波变换的理论引入到LMS自适应滤波器的设计中,分析了基于多尺度正交小波变换的自适应滤波算法的原理;将变步长LMS算法与多尺度小波变换的思想结合,提出了一种新的小波自适应滤波算法(MSWT-MVSS-LMS),新算法既减少了输入向量自相关矩阵条件数,又克服了固定步长LMS算法在收敛速度与收敛精度方面与步长因子μ的矛盾,获得了更好的收敛速度和稳定性.仿真结果表明新算法是有效的和优越的.
|
| 关 键 词： | 自适应滤波 最小均方算法 变步长 多尺度小波变换 |
A New Adaptive Filtering Algorithm Based on Multi-scale Wavelet Transform |
| |
| TANG Jian-feng,ZHANG Deng-yu,LUO Xiang-nan.A New Adaptive Filtering Algorithm Based on Multi-scale Wavelet Transform[J].Communications Technology,2008,41(12). |
| |
| Authors: | TANG Jian-feng ZHANG Deng-yu LUO Xiang-nan |
| |
| Affiliation: | TANG Jian-feng,ZHANG Deng-yu,LUO Xiang-nan (Department of Physics , Electronic Information Science,Hengyang Normal University,Hengyang Hunan 421008,China) |
| |
| Abstract: | The multiple-scale wavelet transform theory is introduced into the LMS adaptive filtering algorithm.The paper analyzes the principle of the LMS adaptive filtering algorithm based on multiple-scale wavelet transform.The variable step size LMS algorithm and the multiple-scale wavelet transform are merged into the adaptive filtering system.A novel method is proposed in this paper,that is,a LMS adaptive filtering algorithm with modified variable step size based on multiple-scale wavelet transform (MSWT-MVSS-LMS... |
| |
| Keywords: | adaptive filtering Least Mean Square algorithm variable step size multiple-scale wavelet transform |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
