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首页> 外文期刊>Applied Computational Electromagnetics Society journal >A Fourier Split-Step Based Wide-Angle Three-Dimensional Vector Parabolic Wave Equation Algorithm Predicting the Field Strength Over Flat and Irregular Forest Environments
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A Fourier Split-Step Based Wide-Angle Three-Dimensional Vector Parabolic Wave Equation Algorithm Predicting the Field Strength Over Flat and Irregular Forest Environments

机译：基于傅立叶分步的广角三维矢量抛物线波动方程算法预测平坦和不规则森林环境下的场强

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摘要

This paper provides the analysis of radio wave propagation prediction over flat and irregular forest environments. A three-dimensional vector parabolic wave equation (3DPE) method is used to calculate the field strength due to the forest on a lossy ground. Forest terrains are equivalent to a series of absorbing blocks arranged along the direction of propagation. Under the assumption of forwarding propagation, a 3DPE is derived and the Fourier split-step based PE (SSPE) method is adopted to march the potentials from one aperture plane to the next. A Tukey window function is used to attenuate the fields smoothly at the upper boundary without reflections. Finally, the simulation results are compared with the analytical methods presented in the literature. The simulation results have shown the validity of the proposed algorithm.
机译：本文提供了在平坦和不规则森林环境中无线电波传播预测的分析。三维矢量抛物线波动方程（3DPE）方法用于计算由于森林在有损耗的地面上引起的场强。森林地形相当于沿传播方向排列的一系列吸收块。在前向传播的假设下，推导了3DPE，并采用基于傅立叶分步的PE（SSPE）方法将电势从一个孔径平面传播到另一个孔径平面。 Tukey窗口函数用于在没有反射的情况下在上边界处平滑衰减场。最后，将仿真结果与文献中介绍的分析方法进行了比较。仿真结果表明了该算法的有效性。

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