蒸发波导高度分布变化对雷达探测的影响研究  

Study on the Influence of the Variation of Evaporation Duct Height Distribution on Radar Detection

作　　者：唐海川[1] 王华[1] TANG Hai-chuan;WANG Hua(Dalian Naval Academy,Dalian 116018,Liaoning Provim e,China)

机构地区：[1]海军大连舰艇学院,辽宁大连116018

出　　处：《海洋技术学报》2018年第3期56-60,共5页Journal of Ocean Technology

摘　　要：针对蒸发波导高度在海洋上水平分布不均匀,进而影响雷达探测距离的问题,采用雷达探测距离评估模式,对蒸发波导高度随距离变化条件下雷达探测距离进行仿真分析,结果表明当雷达天线位于水平非均匀的蒸发波导内,雷达在蒸发波导低的一侧向蒸发波导高的一侧探测时,雷达最大作用距离超过蒸发波导高的一侧向蒸发波导低的一侧探测时雷达的最大作用距离,这与视蒸发波导高度为水平均匀的采用单站蒸发波导数据评估雷达最大探测距离的结论相反。说明在蒸发波导高度水平分布非均匀的海域评估雷达作用距离时,需要获取大于雷达作用距离的蒸发波导数据,采用随距离变化的蒸发波导评估雷达作用距离。In order to solve the problem that the horizontal distribution of evaporation duet is uneven in the ocean and then a[[eets the detection range of radar, this paper adopts the radar detection evaluation model to simulate and analyze the detection range of radar on the condition of the height of evaporation duet changing with distance. The results show that when the radar antenna is located in a horizontally non-uniform evaporation duet, the radar is detected from the lower side of the evaporation duet toward the higher side, and the maximum detection range of radar is larger in contrast to the condition that the radar is detected from the higher side of the evaporation duet toward the lower side. This is contrary to the conclusion of using single station evaporation duet data to evaluate the maximum detection range of radar. It shows that when the detection range of radar is evaluated in the non-uniform evaporation duet condition, it is necessary to obtain the evaporation duet data in the area larger than the detection range of radar, and to evaluate the detection range of radar by the evaporation duet changing with distance.

关 键 词：蒸发波导 分布变化 电磁波 传播损耗 雷达探测 

分 类 号：P79[天文地球—海洋科学]