基于地形信息的平流层通信系统传播衰减预测

给出了一种基于地形信息的预测平流层通信系统大尺度衰落的算法，包括地形重建和传播衰减计算，及编程实现的方法，计算出了平流层空中平台到某一区域的大尺度传播衰减，并根据该算法针对地形变化对传播衰减的影响进行了仿真，结果表明，平流层通信系统的传播衰减受地形变化的影响比地面通信系统小得多，在没有平流层通信实测数据的情况下，上述预测算法对仿真通信系统性能具有重要意义。

Topographic Information Based Path Loss Prediction for Stratosphere Communication System

This paper proposed a topographic information based algorithm of large scale path loss prediction of the stratosphere communication system. It includes both ground profile reconstruction and propagation attenuation calculation. Also, the way to realize it in a computer program was addressed. The computing result yields the large scale path loss from the platform in the sky to a particular area. In addition, simulations based on the proposed algorithm were carried out to show the influence of terrain on the path loss. The result shows the path loss is much less affected by terrain than that of ground communication systems. The research is of great significance to the performance simulation of stratosphere communication system for which no data of measurements are now available.