摘要
为进行三维电磁环境电波传播的计算、应用和分析,提出一种基于抛物方程(PE)模型的三维广域电波传播预测和应用方法。基于数字高程模型抓取地形剖面数据并进行地面类型和大气折射率剖面的配伍,给出PE模型中获得任意位置电磁数据的方法,批处理并行运算各二维剖面的电波传播,提出剖面上和剖面间任意空间点场强数据的生成方法,基于等价门限实现雷达、通信、电磁干扰等应用的作用区域预报。利用FORTRAN在科学计算、MATLAB在数据分析和可视化上的优势,设计软件流程,数值实验验证了该方法的正确性和可行性。
To compute, apply and analyze the wave propagation in 3D electromagnetic environment, a method of wave propaga- tion forecasting and applying in 3D wide area with parabolic equation （PE） model was presented. Terrain profiles were snatched from digital elevation model （DEM） and configured with ground composition type and refractivity profile. A method of field com- putation at arbitrary distance and height with PE was resolved. Wave propagation computation in 2D profiles was carried out using batch parallel algorithm. Creation of field at arbitrary position on a profile or that between profiles was proposed. Functional region forecasting based on equipollent bounds was achieved in radar, communication, and electromagnetic interference and so on. The software flow was designed using FORTRAN＇s virtue in scientific computation and MATLAB＇s virtue in data analysis and visualization. Correctness and validity of the method were verified by numerical experiments.
出处
《计算机工程与设计》
北大核心
2015年第12期3328-3332,共5页
Computer Engineering and Design
关键词
抛物方程
三维
电波传播预测
数字高程模型
批处理并行算法
parabolic equation
3D
wave propagation forecasting
digital elevation model
batch parallel algorithm
