基于现有天线设备对数字定向发射系统的研究

发布时间：2018-06-01 13:38

  本文选题：阵列天线 + 不规则圆阵　； 参考：《无线电通信技术》2016年06期

【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。
[Abstract]:Based on the existing equipment of communication base or shipborne communication platform, a distributed array antenna system is constructed by using multiple independent antennas. In this antenna system, the principle of digital directional beamforming is introduced, and various errors in the actual transmission process are analyzed, as well as its influence on beamforming. A calibration method is proposed to reduce the effect of these errors on beam synthesis. Taking irregular circular array as an example, the simulation results show that the digital directional transmission system can effectively realize the power enhancement of a fixed target direction. The system can adjust the phase parameters in real time and realize the scanning or multi-point directional emission in a certain direction in time sharing.
【作者单位】： 同方电子科技有限公司研究所;航天华迅科技有限公司;
【分类号】：TN820
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本文编号：1964365