摘要
针对实际地理环境中的电波传播特性预测问题,提出了一种基于数字地图的电波传播特性预测方法。该方法基于抛物方程建立地形条件下的电波传播预测模型,研究从DEM数字地图中提取任意二维地形剖面的方法,最后形成基于数字地图的电波传播预测流程。仿真结果表明,该方法能够基于数字地图有效预测实际地理环境中的电波传播特性,具有较大的工程应用价值。
A new method of radio propagation characteristics prediction is proposed to improve the practicability of calculation in geographical environment. Radio propagation model on terrain based on parabolic equation is used. The method of extracting the two-dimensional terrain elevation profile from DEM digital map is developed. Then the routine for predicting radio propagation characteristics based on digital map is built. Simulation results show that this method could effectively predict radio propagation characteristics in practical geographical environment.
出处
《无线电通信技术》
2017年第4期80-82,95,共4页
Radio Communications Technology
基金
国家自然科学基金项目(41476089)
关键词
地形
数字地图
抛物方程
电波传播
terrain
digital map
parabolic equation
radio propagation
