基于现有天线设备对数字定向发射系统的研究  

Research on Digital Directional Transmission System Based on Existing Antenna Equipments

作　　者：汪安民 刘芳 刘德保 万义和 WANG Anmin LIU Fang LIU Debao WAN Yihe(Research Institute of Tongfang Science and Technology Co., Ltd., Jiujiang Jiangxi 332009, China Hangtian Huaxun Science and Technology Co. ,Ltd. ,Xi＇ an Shaanxi 710071 ,China)

机构地区：[1]同方电子科技有限公司研究所,江西九江332003 [2]航天华迅科技有限公司,陕西西安710071

出　　处：《无线电通信技术》2016年第6期66-69,共4页Radio Communications Technology

摘　　要：在通信基地或舰载通信平台现有设备的基础上,利用多付独立工作的天线,构成一个分布式阵列天线系统。在此天线系统上,介绍了数字定向发射波束形成的原理,分析了实际发射过程中的存在的各种误差,及其对波束合成的影响,并提出采用校准的方法以降低这些误差对发射波束合成的影响。以不规则圆阵布阵为例进行仿真,结果表明数字定向发射系统可以有效地实现对某一定点目标方向的功率增强。系统可以在线实时调整相位参数,能够分时实现对某一段方向的扫描发射或者多点定向发射。Based on communication base or ship borne communication platform on the existing equipment,a distributed antenna array systemis constitutedusing extra work independently of the antenna.Based on this antenna system,the principle of digital directional transmission beam-forming is studied in this paper.The influence of the errors to the beam and errors calibration are also introduced.And simulation is performed taking irregular circular array as an example. Simulations results show that the digital directional transmission system can effectively achieve power enhanced to a designated target direction.

关 键 词：阵列天线 不规则圆阵 数字发射波束合成 天线校准 

分 类 号：TN911.7[电子电信—通信与信息系统]