多频通信下无人机导航非线性受扰研究  

Research on nonlinear disturbance of UAV navigation under multi⁃frequency communication

作　　者：唐宇 TANG Yu(Chengdu Space-on Technology Development Co.,Ltd.,Chengdu 610036,China;University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]成都天奥技术发展有限公司,四川成都610036 [2]电子科技大学,四川成都610054

出　　处：《现代电子技术》2023年第16期111-115,共5页Modern Electronics Technique

摘　　要：多任务系统带来的射频兼容问题对无人机系统的功能实现是一种挑战。针对超短波语音电台、船舶自动识别系统(AIS)等多频通信下无人机系统GPS搜星受扰问题,首先通过故障树分析开展故障定位研究;其次,利用平面铝板模拟装机平台开展现场试验验证,复现故障现象;最后,通过干扰路径带通滤波措施有效抑制超短波语音电台发射时产生的有意发射信号,避免该信号经AIS设备非线性作用产生GPS接收机带内干扰信号,从而有效地解决无人机GPS接收机受扰的问题。The RF compatibility problem caused by multi-mission system poses challenges for the function realization of unmanned aerial vehicle(UAV)system.In allusion to the problem that GPS star search of UAV system is disturbed under multi-frequency communication such as VHF voice radio station and ship automatic identification system(AIS),fault location is studied by means of the fault tree analysis.The plane aluminum plate simulation platform is used to conduct the field test verification to repeat the fault phenomenon.The interference path band-pass filtering measures are used to effectively suppress the intentional transmitted signals generated during the transmission of VHF voice radio station,so as to avoid the in-band interference signals of GPS receiver caused by the nonlinear effect of the AIS equipment,and effectively improve the disturbance of UAV GPS receiver.

关 键 词：多频通信 无人机系统 GPS接收机 自动识别系统 电磁干扰 干扰源定位 故障分析 

分 类 号：TN927.2-34[电子电信—通信与信息系统]