沙尘暴对对流层散射通信的影响分析  

Analysis on Influence of Sand Storm on Troposcatter Communicaiton

作　　者：姚敏[1] 王东[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2016年第4期21-24,共4页Radio Communications Technology

摘　　要：对流层散射通信在军事通信领域具有广阔的应用前景,但在沙漠地区,由于无线信道受到沙尘衰的影响,散射的应用会一定受到限制。通过分析一个沙漠地区沙尘粒子的介电特性,得出了沙尘环境下的沙尘随可见度变化的附加衰减损耗,并通过沙漠地区的实际线路测量和分析比较,初步验证了散射通信用于沙漠地区的可行性,并给出了沙漠地区散射应用的建议和优化条件。Troposcatter communication has an extensive application prospect in military communications.However,in desert area, the application of troposcatter communication may be limited partly due to an attenuation loss influence on wireless channel.Through an analysis of the dust and sand particle dielectric characteristics of a desert location,the additional attenuation loss varying with the visi- bility variation is given under dust and sand eonditions.The simulation results are compared and evaluated with real communication link data in desert region.The feasibility of troposcatter communication in desert region is verified initially, and some recommendations and optimizations for troposphere applications in desert rezion are nresented.

关 键 词：沙尘衰 对流层散射 沙尘介电特性 传播损耗 

分 类 号：TN926.4[电子电信—通信与信息系统]