面向无人机通信安全的波束成形策略研究  

Research on beamforming scheme for UAV communication security

作　　者：马晓琳 袁全盛 江源 王长龙 MA Xiaolin;YUAN Quansheng;JIANG Yuan;WANG Changlong(Department of Unmanned Aerial Vehicle Engineering,Shijiazhuang Campus of Army Engineering University,Shijiazhuang 050003,China;Guilin Joint Logistics Support Center,Guilin 541004,China;Unit 32382 of PLA,Wuhan 430311,China)

机构地区：[1]陆军工程大学石家庄校区无人机工程系,河北石家庄050003 [2]桂林联勤保障中心,广西桂林541004 [3]中国人民解放军32382部队,湖北武汉430311

出　　处：《现代电子技术》2023年第19期13-19,共7页Modern Electronics Technique

基　　金：军队科研计划项目。

摘　　要：在多天线无人机空对地通信系统中,假设窃听节点的信道状态信息未知,提出基于位置信息的三维波束成形策略,推导出该系统中的安全中断概率表达式。根据该表达式,构建运动约束和位置约束下的系统安全中断概率最小化问题,提出无人机波束成形向量和飞行路径的联合优化算法,研究了天线类型、天线数目等对系统安全中断概率的影响,仿真结果证明了理论推导的准确性以及算法的有效性。In the multi⁃antenna unmanned aerial vehicle(UAV)air⁃to⁃ground communication system,a location information based 3D beamforming scheme is proposed by assuming that the channel state information(CSI)of the eavesdropping node is unknown.The expression of the secrecy outage probability(SOP)of the system is derived first.On the basis of this expression,the SOP minimization problem is constructed by considering motion constraints and location constraints.A joint optimization algorithm of beamforming vector and flight path with the trajectory of the UAV is proposed.The impact of antenna type and antenna numbers on the SOP is studied.The accuracy of theoretical derivation and the effectiveness of the algorithm have been proved by the simulation results.

关 键 词：无人机 物理层安全 三维波束成形 安全中断概率 航迹规划 系统安全性能 

分 类 号：TN918-34[电子电信—通信与信息系统] TJ089[电子电信—信息与通信工程]