摘要
针对传统测向受距离限制的问题,在分析了相控阵天线波束形成原理以及影响比幅测向精度因素的基础上,给出了基于波束形成的比幅测向方法,该方法通过对相邻波束接收的信号进行处理和相关参数估计实现对目标信号测向。仿真结果表明,基于波束形成的比幅测向方法具有较高的测向精度,与干涉仪测向相比,该方法对超视距目标信号具有更好的测向能力。
Aiming at the problem that traditional direction finding is limited by distance,this paper provides a multi--beamamplitude-comparison direction finding method by processing the signals received by adjacent beams and estimating the relevant parameters based on the analysis of the principle of phased array antennas and the factors afecting the accuracy of amplitude-comparison direction finding.The experimental results show that multi-beamamplitude-comparison direction finding method has higher direction finding accuracy and better direction finding capability for over-the-horizon target compared with interferometer direction finding.
作者
张冰龙
徐建敏
黄凯
ZHANG Bing-long;XU Jian-min;HUANG Kai(No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)
出处
《通信对抗》
2021年第1期10-14,18,共6页
Communication Countermeasures
关键词
波束形成
比幅测向
超视距
参数估计
beamforming
multi--beamamplitude--comparison direction finding
over-the-horizon
parame-ter estimation
