一种基于特征值分布的波束赋形方案  

A Beamforming Scheme Based on Eigenvalue Distribution

作　　者：曾云宝[1] 赵义忠[1] 朱永芬[1] 王文博[1] 

机构地区：[1]北京邮电大学电信工程学院,北京100876

出　　处：《电子与信息学报》2006年第12期2330-2333,共4页Journal of Electronics & Information Technology

基　　金：国家"863计划"(2004AA123160)资助课题

摘　　要：该文分析了在不同角度扩展和DOA情况下的特征值分布,研究了在不同角度扩展环境下不同波束赋形算法的性能。在此基础上,提出了一种基于特征值分布的波束赋形方案。该方案根据信道的特征值分布自适应地采用不同波束赋形算法。仿真表明,该方案与PPPW(Per-PathPer-Weight)波束赋形算法性能相近,同时大大降低计算复杂度。This paper firstly analyzes the eigenvalue distribution in environment with different angle spread and DOA. Secondly, the performance of different beamforming algorithms are investigated first in diverse environment. Then a beamforming scheme based on eigenvalue distribution is proposed, which can adaptively utilize different beamforming algorithm according to the eigenvalue distribution. Simulation results show that the proposed method possesses almost the same performance as the Per-Path Per-Weight（PPPW） beamforming method, furthermore the complexity is reduced greatly.

关 键 词：智能天线 特征值分布 角度扩展 DOA 

分 类 号：TN929.5[电子电信—通信与信息系统]