基于混合波束合成网络的短波测向方法  

HF Direction Finding Method Based on Mixed Beamforming Network

作　　者：王艳温[1] WANG Yanwen(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2018年第6期583-586,共4页Radio Communications Technology

基　　金：国家部委基金资助项目

摘　　要：针对目前短波宽带测向系统全频段覆盖能力不足、对时短信号截获概率低的问题,提出了一种基于混合波束合成网络的宽带测向方法,综合利用模拟波束合成和数字波束合成技术在全频段、全时域、全方位上实现了对短波信号的测向处理。给出了混合波束合成网络的组成、模拟移相分配的实现方式以及基于数字和差波束比相的宽带测向实现原理,提出了基于谱和卡尔曼滤波的测向稳健性改进方法。通过对实际天波信号进行测试,充分验证了所提方法的有效性。The current HF wideband direction finding system has no enough full-band coverage capability and low interception probability for time shortening signals. In view of these problems,this paper proposes a wideband direction finding method based on mixed beamforming network. This method can implement the direction finding processing for HF signals in all frequency ranges,time domains and directions by using analog and digital beamforming technologies. This paper introduces the composition of mixed beamforming network,implementation method of analog phase shifting distribution and implementation principle of wideband direction finding based on digital sum and difference phase comparison,and proposes the improvement method of direction finding robustness based on spectrum and Kalman filtering.The actual HF signal test results show that the proposed method is available.

关 键 词：混合波束合成网络 和差波束比相 短波宽带测向 

分 类 号：TN911[电子电信—通信与信息系统]