| 基于模型拟合的重叠信号盲分离方法 |
| |
| 引用本文： | 蔡权伟,魏平,肖先赐.基于模型拟合的重叠信号盲分离方法[J].电子学报,2005,33(10):1794-1798. |
| |
| 作者姓名： | 蔡权伟 魏平 肖先赐 |
| |
| 作者单位： | 电子科技大学电子工程学院,四川成都 610054 |
| |
| 摘 要： | 本文提出一种多信号分离方法.方法利用多项式相位拟合估计信号相位,构建了多信号分离模型,从而把多信号分离转化为序列和信道参数估计问题,然后利用序列和信道参数估计的方法进行多个信号的幅度和相位的联合估计.利用估计得到的序列和信道参数恢复多个信号各自的相位和幅度,从而对多个信号进行分离.该方法只需利用单个信道接收,并能够对完全重叠的多个信号进行分离.仿真和实际实验证明了方法的优异性能.
|
| 关 键 词： | 多信号分离 重叠信号 分离模型 联合估计 单信道接收 |
| 文章编号： | 0372-2112（2005）10-1794-05 |
| 收稿时间： | 2004-05-08 |
| 修稿时间： | 2004-05-082005-07-08 |
Blind Signal Separation of Overlapped Signals Based on Model Fitting |
| |
| CAI Quan-wei,WEI Ping,XIAO Xian-ci.Blind Signal Separation of Overlapped Signals Based on Model Fitting[J].Acta Electronica Sinica,2005,33(10):1794-1798. |
| |
| Authors: | CAI Quan-wei WEI Ping XIAO Xian-ci |
| |
| Institution: | College of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China |
| |
| Abstract: | A method for separating the overlap signals is proposed in this paper.It sets up a multi-signals separating model using the polynomial phase fitting to estimate the signal phase.This method changes multi-signals separation into the sequence and channel parameters estimation.Then,the method for joint estimating the sequence and channel parameters is took to estimate the each signal amplitude and phase of multi-signals and separate the multi-signals.The method can separate signals entirely overlapped in time and frequency using single channel reception.Simulation and the practical experiment results indicate that the method has the excellent performance. |
| |
| Keywords: | multi-signals separation overlapped signal separation model joint estimation single channel reception |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
| 点击此处可从《电子学报》下载免费的PDF全文 |
