摘要
在抛物方程的基础上引入了地形高程剖面,预测了复杂地形条件下的电波传播特性。首先,基于MATLAB提取调用了数字地图,给出了其主要程序流程图以及提取调用的方法,之后采用插值方法增加了地形模型与实际地形剖面的契合度;其次,使用MATLAB的GUI功能设置了一个高程剖面系统,该系统能够提取地球上任意两点之间的地形高程剖面;最后,通过将高程剖面系统提取的地形高程剖面加入到抛物方程模型中进行计算,分析了在复杂地形环境下电波传播的特性。
This paper introduces the terrain elevation profile based on parabolic equation, forecasts the electric wave propagation characteristics under the complex terrain condition. This paper firstly extracts and calls the digital maps based on MATLAB,gives the main program flow chart and the extraction and call method,then uses interpolation to increase the consilience between terrain mod- el and practical terrain profile; secondly uses GUI function of MATLAB to set an elevation profile system which can extract the terrain elevation profile between random two points on the earth; fi- nally adds the terrain elevation profile extracted by elevation profile system into parabolic equation model and performs calculation, analyzes the characteristics of electric wave propagation in complex terrain environment.
出处
《舰船电子对抗》
2017年第1期62-67,共6页
Shipboard Electronic Countermeasure
关键词
数字地图
抛物方程
地形剖面
传输损耗
digital map
parabolic equation
terrain profile
propagation loss
