[1]颜永庆,尤肖虎.宽带CDMA系统上行链路天线阵列信号到达角估计[J].东南大学学报(自然科学版),2003,33(1):5-8.[doi:10.3969/j.issn.1001-0505.2003.01.002]
 Yan Yongqing,You Xiaohu.Study of the direction of arrival estimation on antenna array signals in uplink of wide-band CDMA system[J].Journal of Southeast University (Natural Science Edition),2003,33(1):5-8.[doi:10.3969/j.issn.1001-0505.2003.01.002]
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宽带CDMA系统上行链路天线阵列信号到达角估计()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第1期
页码:
5-8
栏目:
信息与通信工程
出版日期:
2003-01-20

文章信息/Info

Title:
Study of the direction of arrival estimation on antenna array signals in uplink of wide-band CDMA system
作者:
颜永庆 尤肖虎
东南大学移动通信国家重点实验室,南京 210096
Author(s):
Yan Yongqing You Xiaohu
National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China
关键词:
空-时接收机 CDMA 到达角
Keywords:
space-time receiver CDMA direction of arrival
分类号:
TN914.3
DOI:
10.3969/j.issn.1001-0505.2003.01.002
摘要:
在多径时变信道环境中研究宽带CDMA天线阵列接收机基础上,应用MUSIC和二阶ESPRIT算法进行阵列信号最强径到达角估计; 同时,提出了一种基于阵列收敛条件的导频辅助到达角估计算法,该算法利用自适应阵列收敛条件下正确跟踪期望信号方向的特点,搜索信号最强接收方向,并可将结果直接应用于下行链路波束成形权重计算.仿真结果表明,提出的导频辅助到达角估计算法与MUSIC和二阶ESPRIT算法相比,估计精度有较为明显的提高.
Abstract:
Based on the study of antenna array applied to wide-band CDMA systems, MUSIC(multiple signal classification)and second-order ESPRIT(estimation of signal parameters via rotational invariance techniques)algorithm are employed in the estimation of direction of arrival of the strongest signals. A novel pilot-aided algorithm is proposed for the direction of arrival estimation of received signals, which uses the feature of the convergence of the antenna array to trace the direction of the desired signal correctly and the result can be applied to the calculation of the weight of the downlink beamforming. Simulation results show that the new algorithm achieves a better estimation accuracy when compared with the MUSIC and second-order ESPRIT algorithms on the condition of the convergence of the antenna array under the multipath environment.

参考文献/References:

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 Zhang Guoan,Bao Zhihua,Bi Guangguo.Downlink performance analysis of a CFBM-MC-CDMA communication system[J].Journal of Southeast University (Natural Science Edition),2004,34(1):740.[doi:10.3969/j.issn.1001-0505.2004.06.006]

备注/Memo

备注/Memo:
基金项目: 国家杰出青年基金资助项目(69725001).
作者简介: 颜永庆(1965—),男,博士生,高级工程师; 尤肖虎(联系人),男,博士,教授,博士生导师,xhyu@seu.edu.cn.
更新日期/Last Update: 2003-01-20