[1]刘文珂,马晨欣,金梁..DS_CDMA系统中的DOA估计算法研究[J].郑州大学学报(工学版),2006,27(01):63-66.[doi:10.3969/j.issn.1671-6833.2006.01.015]
　LIU Wenke,Ma Chenxin,Jin Liang.Research on DOA estimation algorithm in DS_CDMA systems[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):63-66.[doi:10.3969/j.issn.1671-6833.2006.01.015]
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DS_CDMA系统中的DOA估计算法研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
27
期数:
2006年01期
页码:
63-66
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Research on DOA estimation algorithm in DS_CDMA systems
作者:
刘文珂; 马晨欣; 金梁.
信息工程大学信息工程学院,河南,郑州,450002, 信息工程大学信息工程学院,河南,郑州,450002, 信息工程大学信息工程学院,河南,郑州,450002
Author(s):
LIU Wenke; Ma Chenxin; Jin Liang
关键词:
DS-CDMA;  DOA;  MUSIC算法
Keywords:
DOI:
10.3969/j.issn.1671-6833.2006.01.015
文献标志码:
A
摘要:
DS-CDMA系统中,智能天线方向图的形成必须依赖于对移动台的到达方向估计.为精确估计来波方向,首先分析研究了适用于DS-CDMA系统的DOA估计的传统算法:MUSIC算法和ESPRIT算法.这两种算法基于子空间分解,运算量大,不易于实时实现.提出使用两种基于MUSIC算法和ESPRIT算法的改进算法进行DOA估计,计算量大大降低.通过模拟实验证明,在CDMA系统多径信号环境下,两种改进算法易于实时实现.
Abstract:
In the DS-CDMA system, the formation of the smart antenna pattern must rely on the estimation of the arrival direction of the mobile station. In order to accurately estimate the incoming wave direction, the traditional algorithms for DOA estimation of DS-CDMA systems: MUSIC algorithm and ESPRIT algorithm are analyzed and studied. These two algorithms are based on subspace decomposition, which is computationally intensive and not easy to implement in real time. Two improved algorithms based on MUSIC algorithm and ESPRIT algorithm are proposed for DOA estimation, which greatly reduces the amount of computation. Simulation experiments show that the two improved algorithms are easy to implement in real time in the multipath signal environment of CDMA system.

更新日期/Last Update: 1900-01-01