电磁环境仿真中电波传播模型研究及仿真分析

摘要

研究了移动通信信道的电波传播损耗模型,通过对不同模型的仿真对比,指出在飞行器控制通信仿真中宜采用Longley-Rice模型的点对点模式,以适应飞行器控制通信的特殊需求。抽取航天飞机雷达地形测绘使命（SRTM）高程数据作为传播模型点对点模式中传播路径的详细地形剖面数据,仿真结果显示电波预测值与理论值吻合度较高。%Simulation of control and communication is the precondition for aircraft communication system design.Radio propagation loss models for mobile communication are studied,and the point-to-point mode of Longley-Rice model suits the aircraft communication simulation most for its satisfaction with the special requirement.Shuttle radar topography mission digital elevation model（SRTM-DEM） is used as detailed terrain profile data of the propagation path for point-to-point mode in simulation.Compared with the theoretical analysis value,the prediction of transmission loss is highly reliable.