蒸发波导环境测量与雷达探测性能分析  

Measurement of Ship-Borne Evaporation Duct Environment and Analysis of Radar Detection Performance

作　　者：闫仲钰 张利军[2] 王红光[2] 朱庆林[2] 蔺发军[2] YAN Zhongyu ZHANG Lijun WANG Hongguang ZHU Qinglin LIN Fajun(Joint Sea Center of North Sea Fleet, Qingdao 266000,China China Research Institute of Radiowave Propagation, Qingdao 266107, China)

机构地区：[1]北海舰队联合海情中心,山东青岛266000 [2]中国电波传播研究所,山东青岛266107

出　　处：《雷达科学与技术》2017年第3期301-305,311,共6页Radar Science and Technology

摘　　要：舰载微波超视距雷达主要通过大气波导传播效应实现对目标的超视距探测。利用测量的水文气象参数,根据蒸发波导模型预测蒸发波导高度,讨论了中性、稳定以及不稳定条件下的3种蒸发波导剖面。给出了便于蒸发波导环境下使用的修正雷达方程,基于抛物方程模型形成微波超视距雷达的探测性能分析方法。在我国南海海域开展了舰载蒸发波导环境测量及微波雷达探测的对比试验,在超视距预测的性能上理论预测结果与实际探测结果较为一致。分析结果对雷达探测及电子战应用具有重要意义。The ship-borne microwave radar can detect the transhorizon target by the duct propagation effect. Based on the measured meteorological data, the height of evaporation duet can be predicted by the evaporation model. Three different evaporation duct profiles under the neutral, stable and unstable conditions are discussed in this paper. A modified radar equation, which is used conveniently in evaporation duct condition, is derived and a method to predict detection performance of microwave transhorizon radar is also given based on the parabolic equation. A comparative experiment of ship-borne evaporation duct measurement and microwave radar detection was conducted at South China Sea. The theoretical result and the actual measurement result are consistent in the transhorizon detection performance. The analytic results have important significance for the applications of radar detection and electronic warfare.

关 键 词：蒸发波导 抛物方程 雷达方程 超视距探测 

分 类 号：TN959.72[电子电信—信号与信息处理]