蒸发波导中舰载雷达超视距探测使用研究

Application Research on Shipborne Radar Detecting over the Horizon in Evaporation Duct Conditions

蒸发波导是海洋大气环境中的一种常见的自然现象,它为舰载雷达实现超视距探测提供了可能,而能否实现超视距探测还与舰载雷达的使用方法有关,具体表现为使用参数的选择问题。以辐射角和天线高度两个使用参数的选择问题为研究对象,用折射率剖面对蒸发波导进行描述,分析了电磁波射线轨迹与折射率剖面的关系,讨论了辐射角和天线高度之间的约束关系,设计了雷达使用的辅助支持系统。仿真实验验证了论文方法的有效性。

The evaporation duct is a kind of familiar natural phenomenon, it provides probability for shipbome radar detecting over the horizon, but whether the result can be achieved is also associated with application, which refers to working parameters se- lection. How to choose radiation angle and antenna height is the question of study, the refractivity profile shows evaporation duct＇s characteristic, the relationship between ray propagation trajectory and evaporation duct＇s refractivity profile is analysed. The constraint condition between radiation angle and antenna height is discussed, and the assist support system with radar application is designed. The simulation experiments verify the effectiveness of the paper method.