| 超宽带通信信号欠定盲源分离 |
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| 引用本文： | 贾银洁,许鹏飞.超宽带通信信号欠定盲源分离[J].南京邮电大学学报(自然科学版),2011,31(1). |
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| 作者姓名： | 贾银洁 许鹏飞 |
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| 作者单位： | 1. 淮阴工学院,计算机工程学院,江苏,淮安,223003;西安科技大学,通信工程学院,陕西,西安,710054
2. 中兴通讯,中心研究院,江苏,南京,210012 |
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| 摘 要： | 针对超宽带通信信号,提出了一种新的二阶段欠定盲源分离方法:阶梯图-最小角度法。在第一阶段即混叠矩阵估计阶段,提出用阶梯图对均匀抽样的数据点进行聚类计算,建立了一种估计混合矩阵的工程化模型,它可以直接估计出源信号个数,并且得到精度较高的混合矩阵估计值;在第二阶段借助最小角度分离准则估计出源信号,从而获得较好的分离性能。
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| 关 键 词： | 超宽带通信信号 欠定盲源分离 稀疏分量分析 阶梯图 最小角度 |
Underdetermined Blind Source Separation Applied to the Ultra-Wideband Communication Signals |
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| JIA Yin-jie,XU Peng-fei.Underdetermined Blind Source Separation Applied to the Ultra-Wideband Communication Signals[J].Journal of Nanjing University of Posts and Telecommunications,2011,31(1). |
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| Authors: | JIA Yin-jie XU Peng-fei |
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| Institution: | JIA Yin-jie1,2,XU Peng-fei3 1.Faculty of Computer Engineering,HuaiYin Institute of Technology,Huai'an 223003,China 2.Communication Engineering College,Xi'an University of Science and Technology,Xi'an 710054,China 3.Center Research Institute,ZTE Corporation,Nanjing 210012,China |
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| Abstract: | A novel two-stage method of underdetermined blind source separation named ladder diagram-minimum angle is proposed for the ultra-wideband communications signals.In the first stage,where the mixing matrix is estimated,cluster calculation is performed on the uniform sampling of data points by using ladder diagram,thus a engineering model for estimating the mixing matrix has been established,which is used to directly estimate the number of source signals and get high precision estimates of the mixing matrix.In... |
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| Keywords: | ultra-wideband communication signals underdetermined blind source separation sparse component analysis ladder diagram minimum angle |
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