基于干扰序列图的无人机定位系统电磁效应分析  

Electromagnetic effect analysis of UAV positioning system based on disturbance sequence diagram

作　　者：白艺杰 周佳乐 柴梦娟 余道杰[1] 李涛[1] 王怡澄 梁丽月 Bai Yijie;Zhou Jiale;Chai Mengjuan;Yu Daojie;Li Tao;Wang Yicheng;Liang Liyue(Institute of Information Systems Engineering,Strategic Support Force Information Engineering University,Zhengzhou 450002,China)

机构地区：[1]战略支援部队信息工程大学信息系统工程学院,郑州450002

出　　处：《强激光与粒子束》2024年第10期124-132,共9页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(61871405)。

摘　　要：无人机定位系统是无人机与外部环境进行信息交互的重要核心模块,同时也为电磁干扰信号提供了耦合路径。围绕无人机定位系统电磁效应分析展开研究,关注未采取电磁加固措施的消费级无人机,基于无人机定位系统内部结构,建立了无人机定位系统的干扰序列图,进而推导出无人机定位系统各模块的瞬态响应函数,基于干扰序列图构建了无人机定位系统物理模型,开展了定位系统电磁效应场路联合分析,仿真分析了定位系统及其敏感单元磁场强度H和磁感应强度B的分布与规律,得到了无人机定位系统的电磁效应分布特征与电磁薄弱环节。仿真结果表明:无人机定位系统电磁薄弱环节在芯片线路连接点处,且随着电磁脉冲干扰时间的增加,电磁效应持续累积且呈现趋势一致的震荡效应。The UAV positioning system is an important core module for the information interaction between the UAV and the external environment,it also provides a coupling path for electromagnetic interference signals.Based on the internal structure of the UAV positioning system,the interference sequence diagram of the UAV positioning system is established,then the transient response function of each module of the UAV positioning system is derived,the physical model of the UAV positioning system is constructed based on the interference sequence diagram,and the joint analysis of the electromagnetic effect field path of the positioning system is carried out.The distribution and law of the magnetic field strength H and magnetic induction intensity B of the positioning system and its sensitive unit are simulated and analyzed,and the electromagnetic effect distribution characteristics and electromagnetic weak links of the UAV positioning system are obtained.The simulation results show that the electromagnetic weak link of the UAV positioning system is at the connection point of the chip line,and with the increase of the electromagnetic pulse interference time,the electromagnetic effect continues to accumulate and shows a consistent trend of oscillation effect.

关 键 词：无人机定位系统 电磁脉冲效应 电磁拓扑 干扰序列图 瞬态响应转移函数 

分 类 号：TN972[电子电信—信号与信息处理]