核环境中HF无线电波传播的计算机模拟

低空核爆炸时会产生附加电离区，对高频无线电波的传播有很大的影响。文章在讨论通信核效应的基础上，介绍针对核爆的电离效应、核辐射产生的电子密度的时空分布等通信核效应问题，设计开发了高频通信核效应计算机模拟系统，并利用该系统针对实际通信电路进行了模拟计算。结果表明，该系统不仅可直接应用于理论研究，同时亦具有很强的实用价值。

Computer simulation of HF radiowave propagation in nuclear environment

Nuclear explosions in lowaltitude make effects on HF propagation channels. In this paper, authors briefly review the mechanism for formiog of additional ionization from to the nuclear explosions and its effects on communications. The method for simulating HF channel in this condition is also described. The design of such a simulation system is then illustrated in detail, including scheme of the system, selected software developing environment and functioning of the system, etc. The simulation system is realized, and as an example, a real communication circuits is simulated with this system. The results show that this system is not only very helpful to theoretic research but also very valuable in use.