| 智能天线系统中上行多用户相干信号的分离与DOA估计方法研究 |
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| 引用本文： | 殷勤业,姚敏立.智能天线系统中上行多用户相干信号的分离与DOA估计方法研究[J].通信学报,2000,21(5):14-17. |
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| 作者姓名： | 殷勤业 姚敏立 |
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| 作者单位： | 西安交通大学,信息工程研究所,陕西,西安,710049 |
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| 基金项目： | 国家“86 3”计划基金资助项目!(86 3- 317- 96 0 3- 0 7- 4 )，西安交通大学研究生院博士学位论文基金 |
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| 摘 要： | 本文研究了平主道中的窨特征估计问题。提出了一种工于循环累量的多用户空间牲针该算法用于智能天线中的ＳＤＭＡ实现。该算法构造了循环累量域四，通过对空间特征循环矩阵的特征分解可以得到用户信号的空间特征估计。并以此为基础，设计了用于上行多波束成形的窨滤波器组实现了上行多用户信号的分离，利用空间滤波器的空间频率响应确定共信道多用户信号的ＤＯＡ《
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| 关 键 词： | 空分多址 空间特征 智能无线系统 用户信号 DOA |
| 修稿时间： | 1998-08-10 |
Uplink separation and DOA estimation method for multi-user correlated signals in smart antenna system |
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| YIN Qin-ye,YAO Min-li.Uplink separation and DOA estimation method for multi-user correlated signals in smart antenna system[J].Journal on Communications,2000,21(5):14-17. |
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| Authors: | YIN Qin-ye YAO Min-li |
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| Abstract: | In this paper,the problem of the spatial signature estimation for flat fading channel is addressed A multi user spatial signature estimation algorithm is presented and applied to smart antenna systems(SAS) The algorithm constructs a new matrix called spatial signature cyclic matrix in cyclic cumulant domain,and estimates multiuser spatial signature through eigen decomposition of spatial signature cyclic matrix Based on the estimation of spatial signature,the uplink spatial filter bank is designed to implement uplink source separation,and DOA of the co channel multi users can be found through the spatial frequency response of the corresponding spatial filter |
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| Keywords: | space division multiple access spatial signature multi beamforming |
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