北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2014, Vol. 37 ›› Issue (4): 88-92.doi: 10.13190/j.jbupt.2014.04.019

• 研究报告 • 上一篇    下一篇

基于自适应算法的三维波束赋形技术

赵季红1,2, 王伟华1, 曲桦1   

  1. 1. 西安交通大学 电子信息工程学院, 西安 710049;
    2. 西安邮电大学 通信与信息工程学院, 西安 710061
  • 收稿日期:2013-11-11 出版日期:2014-08-28 发布日期:2014-08-09
  • 作者简介:赵季红(1963-),女,教授,博士生导师,E-mail:zhaojihong@mail.xjtu.edu.cn.
  • 基金资助:

    国家自然科学基金项目(61372092)

Research on 3D-Beamforming Based on Adaptive Algorithm

ZHAO Ji-hong1,2, WANG Wei-hua1, QU Hua1   

  1. 1. School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    2. School of Telecommunications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China
  • Received:2013-11-11 Online:2014-08-28 Published:2014-08-09

摘要:

为了针对每个移动终端进行动态的三维波束赋形,使三维波束主瓣对准期望用户并且在干扰用户方向形成零陷,构建了均匀平面阵的二维阵列信号模型,研究了基于最小均方误差算法的全局自适应算法,并在此基础上提出了基于降维的局部自适应算法. 2种自适应三维波束赋形算法可以动态地调整阵列单元的权值,自适应地改变天线阵列的方向图,为用户提供实时的跟踪服务. 仿真结果表明,在一定数量的阵列天线单元的条件下,2种算法均可以实现针对期望用户的自适应三维波束赋形.

关键词: 均匀平面阵, 自适应算法, 三维波束赋形

Abstract:

3D-beamforming could use the vertical dimension for antenna pattern adaption, it can provide an additional degree of freedom for transmission signal optimization. A global adaptive 3D-beamforming algorithm based on uniform planar array and a dimension reduction vision algorithm based local adaptive algorithm was proposed. 3D-beamforming algorithm could adjust the antenna weight adaptively according to the user's move or the change of the wireless condition and alter the beam pattern in real time. Simulation shows that the 3D-beamforming aimed at specific user can be implemented by both of the proposed algorithms under a certain number of antenna arrays.

Key words: uniform planar array, adaptive algorithm, 3D-beamforming

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