空域自适应抗干扰在数据链通信中的应用

发布时间：2018-05-18 01:10

本文选题：数据链 + 抗干扰　；参考：《计算机应用》2017年06期

【摘要】：针对战场复杂电磁环境下数据链系统容易受到干扰导致通信互联互通能力下降的问题,提出了一种将智能天线阵空域陷波技术和数据链相对定位技术综合应用的抗干扰方法,来辅助提升系统的通信抗干扰能力。该方法通过数据链相对定位获取期望信号的来波方向,并对多天线阵列进行辐射方向图自主重构,实现在通信信号方向保持增益恒定且在干扰信号方向形成零陷的目标,达到干扰信号抑制的目的。在实验室环境下基于软件无线电平台对所提方法进行了仿真验证,实验结果表明,该方法可以提升40 dB以上的系统干扰抑制能力。该方法将数据链抗干扰手段从传统的时/频域拓展到空域,可以应用于相关系统抗干扰。
[Abstract]:In view of the problem that the ability of communication interconnection is decreased due to the interference of the data link system in the complex electromagnetic environment of battlefield, this paper presents an anti-jamming method which integrates the spatial notch technology of intelligent antenna array and the relative positioning technology of data link. To help enhance the system's communication anti-jamming capability. In this method, the direction of the desired signal is obtained by the relative location of the data link, and the radiation pattern of the multi-antenna array is reconstructed autonomously to achieve the goal of maintaining a constant gain in the direction of the communication signal and forming a zero trapping in the direction of the interference signal. The interference signal suppression is achieved. The simulation results show that the proposed method can improve the system interference suppression capability of more than 40 dB in the laboratory environment based on the software radio platform. This method extends the data link anti-jamming method from the traditional time / frequency domain to the airspace, and can be applied to the anti-jamming of related systems.
【作者单位】：中国西南电子技术研究所;
【基金】：抗干扰技术国防科技重点实验室基金资助项目(9140C020203150C02008)~~
【分类号】：TN97

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