蒸发波导高度水平非均匀性对路径损耗的影响

Evaporation duct height level of heterogeneity on the distribution of path loss

探讨了对流层波导模型参数的水平非均匀性.利用抛物方程法,通过仿真分析了蒸发波导高度和逆变层基底高度的水平非均匀性对对流层波导条件下电波路径损耗分布的影响.仿真结果表明:某些条件下蒸发波导高度的水平非均匀性不能忽略,并由此提出新的对流层波导模型.此外,还应用新的模型对路径损耗进行了反演.仿真结果显示,新反演模型可以有效改善反演计算的效果.

This paper discusses the parameters in the model troposphere waveguide horizontal non-uniformity. The paper uses the parabolic equation method, the simulation analysis of evaporation duct height and the height of the base level of the inverter layer non-uniformity on tropospheric wave waveguide path loss distribution under the influence. Simulation results show that under certain conditions, the level of evaporation duct height non-uniformity can not be ignored, and thus propose a new model of tropospheric waveguide. In addition, the paper also applies the new path loss model for the inversion. Simulation results show that the new model can effectively improve the inversion effect.