抛物线方程中不规则地形的分段线性模型的研究与验证  

Research and Verification for Piecewise Linear Terrain Method of Parabolic Equation Modeling under Irregular Terrain Environment

作　　者：祝杰[1] 尹成友[1] 魏乔菲 

机构地区：[1]解放军电子工程学院脉冲功率激光国家重点实验室,合肥230037

出　　处：《微波学报》2016年第3期32-37,共6页Journal of Microwaves

基　　金：总装预研基金(51333020201)

摘　　要：主要研究了对流层电波传播过程中起伏地形的处理方法。阐述了抛物线方程中阶梯地形方法和分段线性方法,提出了新的初始场设置方法,并给出了算法。利用该方法,仿真计算了尖劈地形下电磁波传播问题,并与射线法和UTD方法的计算结果进行了比较。计算结果显示了分段线性方法的优越性。In this paper,the problem about electromagnetic wave propagation via troposphere over irregular terrains is studied,the staircase terrain modeling method and piecewise linear terrain method of PE method are addressed. A new method about setting initial field and its related algorithms are presented. The results of electromagnetic wave propagation over wedge terrain are calculated using the algorithms above,which we use to make comparison with the results of ray model and UTD model. The comparison shows the accuracy of piecewise linear terrain method.

关 键 词：电波传播 尖劈地形 抛物线方程 分段线性方法 

分 类 号：TN011[电子电信—物理电子学]