低频端超宽谱HPM在低电离层中的自作用效应分析  

Self-Interaction Effects Analysis of Ultra-Wide Spectrum High Power Microwave of Lower Frequency Side in Lower Ionosphere

作　　者：余道杰[1,2] 芈小龙[1,3] 王建民[2] 张长峰[2] 牛忠霞[1] 

机构地区：[1]信息工程大学信息工程学院,郑州450002 [2]信息工程大学理学院,郑州450001 [3]海军后勤部卫生部,北京100841

出　　处：《北京邮电大学学报》2009年第2期43-46,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家"863计划"项目

摘　　要：基于电波电离层传播基本理论和高功率微波大气传输机理,讨论了低频端超宽谱高功率微波(HPM)低电离层中的自作用效应,得到了强场条件下自作用因子表达式,分析了强场条件下电场强度、电波频率、电子碰撞频率、电子密度、传播距离等参数对自作用效应的影响.仿真结果表明,初始场强振幅大、频率高、电子密度越大、传输距离越远,自作用效应越明显.Based on the radiowave propagation theory and high power microwave （HPM） atmosphere propagation mechanism in ionosphere, the self-interaction effects of ultra-wide spectrum HPM of lower-frequency side are analyzed. The formulae for self-interaction factor are obtained in the case of intense field. And the influences on self-interaction effects caused by the electric-field intensity, the radiowave frequency, the electron collision frequency, the electron density and the propagating distance, are also discussed. Simulations show that the self-interaction effects will appear more obviously with the increase of the amplitude of the initial field intensity, the frequency of ultra-wide spectrum HPM, the density of electron density, and the propagation distance.

关 键 词：高功率微波 低电离层 超宽谱 自作用效应 

分 类 号：TN011.2[电子电信—物理电子学]