蒸发波导对毫米波传播的影响分析  

Analysis of Influence of Evaporation Waveguide on Millimeter-wave Transmission

作　　者：滕振宇[1] 潘成胜[2] 冯永新[2] 

机构地区：[1]南京理工大学,江苏南京210094 [2]沈阳理工大学通信与网络工程中心,辽宁沈阳110168

出　　处：《火力与指挥控制》2008年第9期37-40,共4页Fire Control & Command Control

基　　金：国防预研基金资助项目(41101060209)

摘　　要：在毫米波电子对抗领域,通常认为毫米波频段电磁波传播近乎于直线传播,因此研究重点多集中于视距范围内对抗方法研究。但在海洋大气环境中,由于蒸发波导的存在,满足一定条件的毫米波频段电磁波传播会出现超视距现象。为此,在对蒸发波导及毫米波传播特点研究基础上,重点分析了蒸发波导中毫米波频段电磁波的最低陷获频率、最大发射仰角以及形成波导传播后蒸发波导内毫米波射线追踪问题。对毫米波超视距电子对抗研究具有重要意义。In the field of millimeter-wave electronic countermeasures, it is commonly considered that electromagnetic wave propagation of the millimeter-wave fequency band approaches to the straight line propagation, and therefore more studies focus on the resistance method research within the apparent distance scope. But in the ocean-atmosphere environment, because of the presence of evaporation waveguide, so the millimeter-wave band electromagnetic wave propagation which can meet certain conditions will appear beyond-the horizon propagation. Therefore, on the basis of research on evaporation waveguide and millimeter-wave propagation characteristics, the min trapped frequency, the max critical elevation and ray tracing of millimeter-wave in evaporation waveguide are mainly analyzed. It is of great significance in the millimeter-wave beyond-the-horizon electronic countermeasures.

关 键 词：蒸发波导 毫米波 最低陷获频率 最大临界仰角 射线追踪 

分 类 号：TN97[电子电信—信号与信息处理]