基于抛物方程的电磁信号传播系统设计与实现

Design and implementation of electromagnetic signal propagation system using parabolic equation model

为模拟电磁信号在大尺度复杂大气和地形环境下的传播,研究其传播特性,基于抛物方程模型,以Java为开发语言,设计并实现了一款电磁信号传播模拟系统.该系统包含对大气和地形的建模和以抛物方程为算法的步进计算,最终输出指定计算区域的电磁传播损耗值.测试结果表明:其结果与美国高级折射效应预测系统(AREPS)输出结果基本相符,表明该系统对于复杂战场环境下的电磁环境模拟以及我国国防预警设施建设具有重要意义.

This article focuses on the simulation of electromagnetic signal propagation over large areas with complex atmospheric and terrain.An electromagnetic signal propagation simulation system was designed using parabolic equation model and Java programming language.The system consists of two parts,the modeling of atmosphere and terrain and the step-by-step calculation part with parabolic equation.The output of this system is the loss value of the calculation area.Given some test input,the results calculated by the system are consistent with the results of AREPS(advanced refractive effects prediction system)developed by the United States.The system is of great significance to electromagnetic environment simulation over the complex battlefield environment and the construction of the nation defense early warning facilities.