摘要
大气波导是影响舰载通信距离的重要因素。针对大气波导传播条件及电磁波在大气波导中的传播特性,利用抛物方程方法计算大气波导环境中的电波传播因子,研究了舰载通信系统最大覆盖距离的估算方法,仿真分析了超短波和S波段通信系统在表面波导中的通信距离。仿真结果表明,大气波导环境能够实现舰载通信系统的超视距通信,通信覆盖距离可达上百公里。
Atmospheric waveguide is the important factor that affects the shipborne communication distance.Aiming at the propagation conditions of atmospheric waveguide and the characteristics of electromagnetic wave propagating in the atmospheric waveguide,this paper calculates the propagation factor in atmospheric waveguide environment by using parabolic equation method(PEM),and studies the estimation method of maximum coverage distance of shipborne communication system,at the same time simulates and analyzes the communication distance of ultra high frequency(UHF)and S-band communication system in the surface waveguide.The simulation result shows that the over-the-horizon communication of shipborne communication system can be realized in the atmospheric waveguide environment,and the communication coverage distance is up to hundreds of kilometres.
作者
盛楠
SHENG Nan(Southwest China Institute of Electronic Technology,Chengdu 610036,China)
出处
《舰船电子对抗》
2020年第4期55-59,共5页
Shipboard Electronic Countermeasure
关键词
大气波导
抛物方程法
通信距离
atmospheric waveguide
parabolic equation method
communication distance
