阵列天线的三维波束赋形技术及其Matlab实现  

3D-Beamforming of Array Antenna and the Simulation Based on Matlab

作　　者：赵季红[1,2] 王伟华[1] 曲桦[1] 

机构地区：[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

出　　处：《北京邮电大学学报》2014年第3期78-82,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61372092);国家科技重大专项项目(2011ZX03005-004;2012ZX03001029-003;2012ZX03001008-003)

摘　　要：为了利用垂直维度的空域资源进行三维波束赋形,提高终端接收信号的信干噪比和系统容量以及系统能量效率,实现绿色节能的通信,对均匀平面阵列天线的三维波束赋形技术的基本原理进行了研究.波束在垂直方向的角度分辨率直接影响着垂直维度的空域资源利用率,通过Matlab仿真分析了不同因素对垂直方向角度分辨率的影响.仿真结果表明,水平角度对垂直方向的角度分辨率基本没有影响,随着俯仰角的增大,均匀平面阵在垂直方向的角度分辨率明显降低,但可以通过增加阵元的数目提高垂直方向的角度分辨率,实现对特定目标方向有效的三维波束赋形.3D-Beamforming is a promising technique for mobile wireless communication systems to improve the system performance and realize green communications. By exploring the vertical dimension of the spatial area, 3D-Beamforming could enhance the signal to interference plus noise ratio of the received signal, raise the spectrum utilization rate and improve the energy efficiency. The fundamental theory of array antenna＇ s 3D-Beamforming is studied. The half-power beam width （HPBW）of the beam at vertical dimension has been computed by Matlab simulation under influence of different factor. Simulation shows that horizontal angular does not affect the basic level of HPBW, with the increase of vertical angular, the HPBW increase significantly, but it can be decreased by adding more antenna array unit.

关 键 词：均匀平面阵 三维波束赋形 MATLAB仿真 

分 类 号：TN929.53[电子电信—通信与信息系统]