【摘要】 为了分析电磁波在海洋波导环境中的传播损耗情况,建立了海洋波导环境中典型的五参数经验模型。讨论了利用地型抛物方程求解时将海平面作为理想导体处理与实际情况的误差,对参数变化导致电磁波传播损耗的变化进行了敏感性分析。结果表明,对于在高频工作的无线电系统,可将海平面作为理想导体近似处理;五参数对电磁波传播损耗变化的敏感性各不相同,存在蒸发波导时,蒸发波导的厚度对电磁波传播损耗变化最为敏感,而存在表面波导时,波导底的高度对电磁波传播损耗变化最为敏感。更多还原

【Abstract】 In order to analyze electromagnetic propagation loss in ocean waveguide,a parametric model was set up.The terrain parabolic equation model was used to solve the problem.Errors in the sea surface assumed as an perfect conductor were analyzed.Sensitivity between the five parameters and the propagation loss was discussed.Results indicate that when wireless equipments work in high frequency,the sea surface can be assumed as a perfect conductor,and the evaporation waveguide height is the most sensitive,while the height is the most sensitive in surface waveguide.更多还原