基于抛物方程法的部分森林覆盖山区电波传播分析

Analysis of radio propagation in partly forested terrain environment using parabolic equation approach

基于Fourier分步步进法的抛物方程模型求解了山区不规则地形部分森林覆盖环境的电波传播,并分析了森林对电波传播的影响。模型中为了简化边界条件,地形用分段线性函数来近似。然后预测了一个山区部分针叶林覆盖环境的电波传播,得到的结果与实测数据进行对比,二者吻合很好。最后对算法的稳定性与误差进行了分析,本文的模型能处理不规则地形、森林等复杂环境且算法效率高。

Analysis of radio propagation in partly forested terrain environment using Fourier split-step parabolic equation approach is presented. The terrain is approximated by piecewise linear segments to simplify implementation of boundary condition in model. The predicted propagation in a partly fir forested terrain environment is obtained and compared with measurements, good agreement is reported. Finally, the convergence and error of the algorithm is analyzed.