基于频域模型的DS-CDMA UWB信号DOA的估计方法

doi:10.13190/jbupt.200603.44.xiab

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (3): 44-47.doi: 10.13190/jbupt.200603.44.xiab

基于频域模型的DS-CDMA UWB信号DOA的估计方法

夏斌，闫东，王文博

北京邮电大学电信工程学院, 北京 100876

收稿日期:2005-05-26 修回日期:1900-01-01 出版日期:2006-06-30 发布日期:2006-06-30
通讯作者: 夏斌

Estimation Methods of DOA for DS-CDMA UWB Signal Based on Frequency Model

XIA Bin , YAN Dong, WANG Wen-bo

School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876

Received:2005-05-26 Revised:1900-01-01 Online:2006-06-30 Published:2006-06-30
Contact: XIA Bin

摘要/Abstract

摘要：

推导出了DS-CDMA UWB（direct sequence code division multiple access ultra wide bandwidth）阵列信号的频域模型，在此基础上提出了2种基于该频域模型到达角的估计方法：前者方法建立在二阶统计量的基础上；后者以四阶累积量为基础。仿真结果表明，这2种方法都能准确估计超宽带信号的到达角，但前者算法的复杂度低。

关键词: 到达角, 二阶统计量, 四阶累积量

Abstract:

A frequency domain model of DS-UWB array signals was derived .Then two DOA estimation methods using the frequency domain model were presented. One was based on the second–order statistic; the other was based on the fourth-order cumulant. Simulation results show that these methods are effective and the computation complexity of the former is much lower than that of the latter.

Key words: direction of arrival, second-order statistic, fourth-order cumulant

中图分类号:

TN914.4

夏斌，闫东，王文博. 基于频域模型的DS-CDMA UWB信号DOA的估计方法[J]. 北京邮电大学学报, 2006, 29(3): 44-47.

XIA Bin , YAN Dong, WANG Wen-bo. Estimation Methods of DOA for DS-CDMA UWB Signal Based on Frequency Model[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2006, 29(3): 44-47.

基于频域模型的DS-CDMA UWB信号DOA的估计方法

Estimation Methods of DOA for DS-CDMA UWB Signal Based on Frequency Model

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