电离层不均匀性与短波远程传播信道

Ionospheric Inhomogeneity and Short Wave Long—Distance Propagation Channel

本文由 Maxwell 方程推导出一个标量场方程,在此基础上,利用量子力学中势能墙的概念,分析了短波长距离传播特点,获得了电波射线最大和最小反射点高度,并对传播信道进行了分类(E,FE,F 三类),同时求得了对应的最大可用频率和最大发射角。最后探讨了电离层不均匀性对远程传播的重要影响。

In this paper,a scalar electromagnetic field equation is obtained from Maxwell equations. Based on this equation,Using the potential Wall concept,HF wave characteristics of long distance propagation are analyzed.The maximum and minimum heights of reblection point are calculated. There are wave ducts of E—,FE—and F—routes.Meanwhile,maximum usable frequency (MUF)and emission angles are obtained.Finally,horizontal inhomogeneities in the ionosphere and their influence on short wave long distance propagation are discussed.