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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。
Mainly studied the processing of undulating terrain in the tropospheric wave propagation. The terrain terrain method and piecewise linear method in parabolic equation are described. A new initial field setting method is proposed and the algorithm is given. Using this method, the electromagnetic wave propagation problem under the wedge topography was simulated and compared with the results of the ray and UTD methods. The results show the superiority of the piecewise linear method.