西安交通大学信息工程研究所,西安,710049
纸质出版:1999
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[1]姚敏立,殷勤业.平衰落信道中的空间特征估计算法及其在空分多址中的应用[J].电子学报,1999(10):94-97.
YAO Min li, YIN Qin ye. Spatial Signature Estimation Algorithm in Flat Fading Channel and Its Application to Space Division Multiple Access[J]. Acta Electronica Sinica, 1999, (10): 94-97.
本文提出了一种基于累量的多用户空间特征估计算法,并将该算法用于智能天线中空分多址的实现.该算法构造了累量域空间特征矩阵,通过对空间特征矩阵的特征分解得到各用户信号空间特征估计.基于空间特征的估计,设计了用于上行多波束成形的空间滤波器组,实现了上行多用户信号的分离.仿真实验表明,空间滤波器的响应可用于相干源的波达方向估计,为实现频分双工系统的下行选择性发送提供了依据
In this paper
a multiuser spatial signature estimation algorithm is presented and applied to implementing space division multiple access in smart antenna systems.The algorithm constructs a new matrix called spatial signature matrix in cumulant domain
and estimates multiuser spatial signature through eigen decomposition of spatial signature matrix.Based on spatial signature estimation
uplink spatial filter bank is designed to implement uplink multiuser signal separation.Computer simulation shows that the response of the spatial filters can be used to direction of arrival estimation for multiple correlated signals
thus provide basis for implementing downlink selective transmission in a FDD system.
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