摘要
蒸发波导条件下,S波段舰载搜索雷达的超视距探测能力不仅受海面气象水文环境和雷达主要工作参数影响,还与雷达天线架设高度密切相关。采用基于PE方程的电磁波传播衰减计算方法,通过计算分析S波段雷达辐射电磁波在各种蒸发波导条件下的传播衰减值,得出S波段舰载搜索雷达采用高天线架设高度能获取更好的超视距探测效能的结论。同时考虑到在多数蒸发波导条件下,20m、25m和30m天线架设高度对应传播衰减值较为接近,并且采用较低天线架设高度可降低系统建设和使用维护成本,因而S波段舰载搜索雷达天线架设高度在20m左右可充分发挥雷达探测效能并具有较好的经济性。
In order to achieve optimum OTH detection for S band shipboard surveillance radar,Radar antenna height is researched completely.Firstly,the method of calculation of electromagnetic propagation loss based on PE equation is presented.Then the propagation loss of S band radar in different evaporation duct conditions is calculated and analyzed.Finally the conclusion is outlined as follows：for S band shipboard surveillance radar,higher antenna height can obtain better detection than lower antenna height,but according to the fact that the propagation loss is closed among the antenna height of 20 m,25 m and 30 m,and the cost of lower antenna height is lower than higher antenna height,so antenna height is suggested near to 20 m.
出处
《电子测量技术》
2012年第9期36-39,共4页
Electronic Measurement Technology
基金
海军基金项目
关键词
舰载搜索雷达
S波段
蒸发波导
传播衰减
天线架高
shipboard surveillance radar
S band
evaporation duct
propagation loss
antenna height
