摘要
为确定输电线路对机场通信导航设备的干扰程度,进而得到飞机的安全防护距离,基于Sommerfeld水平电偶极子场理论,建立了水平单导线电场强度的计算模型,得到输电线路时谐电流在任意点激励的电场强度水平分量,给出了适用于中短波和超短波段输电线路再辐射电场强度的计算方法,经过仿真分析及以无人机为载体,携带相关设备进行的干扰测试实验,验证了分析的合理性。并以仪表着陆系统为例进行了防护距离计算,为确定飞机飞行安全的防护距离,提供了一定的依据。
In order to determine the interference degree of electric transmission line on the airport communication navigation equipment and obtain the safety protection distance of aircraft,based on theory of Sommerfeld horizontal dipole field,the calculation model of electric field intensity of horizontal single line was established.The horizontal component of electric field intensity excited by harmonic current of transmission line at any point was obtained.Moreover,the calculation method that was suitable for reradiation field strength of electric transmission line in intermediate wave,and ultra-short wave was given.Through simulation analysis and interference test experiment that carried some relevant devices and used UAV as carriers,the rationality of analysis was verified.Meanwhile,taking the instrument landing system as an example,the protection distance was calculated,which provides certain basis for determining safe distance of flight.
作者
闫婷
赵迎春
崔鼎新
高庆吉
YAN Ting;ZHAO Ying-chun;CUI Ding-xin;GA0 Qing-ji(Robotics Institute,Civil Aviation University of China,Tianjin 300300,China;China Electric Power Research Institute,Beijing 100192,China)
出处
《计算机仿真》
北大核心
2019年第5期73-77,共5页
Computer Simulation
关键词
水平偶极子
电场强度
仪表着陆系统
防护距离
Horizontal dipole
Electric field intensity
Instrument landing system
Protection distance
