大气波导传播现象研究及通信应用设想

Study on Atmospheric Duct Propagation Phenomenon and Assumption of its Communication Application

对流层中的大气波导是一种支持高性价比超视距通信的优质通信信道资源。介绍了大气波导的陷获折射传播机制及波导分类;基于华北地区、黄海海域典型链路试验结果,研究了大气波导与对流层散射双模式传播现象,分析了大气波导的存在性、信道传输特性和通信可用性;鉴于大气波导低损耗高电平、不连续但有日变化趋势性发展规律的特点,提出波导/散射联合超视距弹性通信技术及基于大气波导的容中断伺机通信技术设想,其对波导资源的高效利用可支持超视距通信效能的显著提升。

The atmospheric duct in the troposphere is a kind of high-quality communication channel resource,which can support Beyond Line of Sight（BLOS） communication with high cost performance.First the trap refraction propagation mechanism and the classification of atmospheric duct are introduced.Then based on the experimental results of typical links in North China area and the Yellow Sea,the phenomenon of atmospheric duct and troposcatter dual-mode propagation is studied,and an analysis is given about the existence,channel transmission characteristic and communication availability of atmospheric duct.Furthermore,in view of its features such as low loss and high level,discontinuous development but having a daily variation trend,two technology assumptions are put forward,including atmospheric duct and troposcatter jointly BLOS elastic communication,as well as disruption tolerant and opportunistic communication based on atmospheric duct,whose efficient utilization of atmospheric duct resource may result in a notable improvement of the efficiency of BLOS communication.