海上电波传播预测模型研究与仿真

研究了海上电波传播的预测模型,重点论述了抛物方程法的理论基础,详细给出了该方法下的电波传播损耗计算的模型推导和求解方法。在此基础上利用MATLAB分别对海上中性大气层结条件下的水平和垂直极化电波传播特性进行了仿真计算。仿真结果与理论研究和实际实验结论相符,说明了仿真的正确性。通过设置辐射源和大气参数进行对比仿真,具体分析了大气环境特别是蒸发波导对水平和垂直极化电波传播的影响。最后给出了需要深入研究的方面。本文的研究可为海上电波传播的研究提供有益的参考。

Research and stimulation of radio propagation model over the ocean

Radio propagation model is researched and the theory of parabolic equation model is minutely discussed,then algorithmic method of propagation loss over this model is deduced and calculated.Based on this arithmetic,using the MATLAB,stimulation is carried through on horizontal and vertical polarization wave in atmospheric neutrosphere.The result of simulation is consistent to the conclusion of the academic research and actual experiment,thus this tells the validity of the simulation.Stimulation is carried through on different parameters of radiant point and atmosphere,and then influence of radio propagation over the ocean on horizontal and vertical polarization wave by evaporation ducts of atmospheric environment is illuminated.In the end,the aspects of farther research which are needed are put forward.The research of the paper can offer useful reference for radio propagation over the ocean.