森林中电波传播的抛物方程法

Parabolic equation model for wave propagation in forest environments

抛物方程法能处理非均匀介质环境中的电波传播问题,并可用FFT步进算法快速求解,在电波传播中得到了广泛运用。该文用抛物方程法求解了森林中的电波传播问题,并将计算结果与Tamir侧面波模型的结果进行比较,二者吻合很好。最后用抛物方程法分析了森林中电波传播的特性。

Parabolic equation is used widely in electromagnetic wave propagation through inhomogeneous environments, and it can be solved efficiently by using Fourier split-step methods. In this paper, the wave propagation in forest environments is obtained with parabolic equation model and the results are compared with the ones from Tamir＇s lateral-wave method, and the results are coincident quite well. Finally the characteristic of propagation in the forest is analyzed.