|
|||||
|
|
| 基于分数低阶矩的非整数时间延迟估计方法 | |
| 引用本文： | .刘文红,邱天爽,胡婷婷,栾连毅,赵 勇.基于分数低阶矩的非整数时间延迟估计方法[J].通信学报,2006,27(12):37-42. |
| 作者姓名： | .刘文红 邱天爽 胡婷婷 栾连毅 赵 勇 |
| 作者单位： | 1. 大连理工大学,电子与信息工程学院,辽宁,大连,116024;海南师范大学,物理系,海南,海口,571158 2. 大连理工大学,电子与信息工程学院,辽宁,大连,116024 3. 大连市无线电管理委员会办公室,辽宁,大连,116011 |
| 基金项目： | 国家自然科学基金;国家重点实验室基金;海南省自然科学基金;海南省教育厅高校科研项目 |
| 摘 要： | 依据信号的噪声特性和分数低阶矩理论,提出一种基于最小平均p范数的非整数时间延迟估计方法(称为LMPFTDE算法)。该算法是对直接估计非整数采样间隔的时间延迟估计算法(ETDGE)的广义化,运用最小分散系数准则,通过使误差的p阶矩最小得到非整数时间延迟估计值。理论分析和计算机仿真结果都表明该方法不仅可以在高斯噪声环境下工作,而且在脉冲噪声下也具有良好的健壮性。 |
| 关 键 词： | 信号处理 非整数时间延迟估计 分数低阶矩 α稳定分布 脉冲噪声 |
| 文章编号： | 1000-436X（2006）12-0037-06 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2006-09-26 |
Fractional time delay estimation algorithm based on the fractional lower order moment |
|
| LIU Wen-hong,QIU Tian-shuang,HU Ting-ting,LUAN Lian-yi,ZHAO Yong.Fractional time delay estimation algorithm based on the fractional lower order moment[J].Journal on Communications,2006,27(12):37-42. | |
| Authors: | LIU Wen-hong QIU Tian-shuang HU Ting-ting LUAN Lian-yi ZHAO Yong |
| Affiliation: | 1. School of Electronic and Information Engineering, Dalian University of Technology, Dalian 116024, China; 2. Department of Physics, Hainan Normal University, Haikou 571158, China; 3. Radio Management Committee Office of Dalian City, Dalian 116011, China |
| Abstract: | According to the noise characteristics in signal, a fractional time delay estimation algorithm referred to as LMPFTDE was proposed based on the least mean p-norm. This approach generalized the explicit time delay gain estima-tion (ETDGE) algorithm using the least dispersion criterion. The fractional time delay estimation value could be obtained by minimizing the pth order moment of the error signal. It is shown by theoretical analysis and computer simulations that the proposed method is robust for both Gaussian and non-Gaussian impulsive noise environments. |
| Keywords: | signal processing fractional time delay estimation fractional lower order moment a stable distribution impulsive noise |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《通信学报》浏览原始摘要信息 | |
| 点击此处可从《通信学报》下载全文 | |