大气波导条件下雷达电磁盲区的预报研究

大气波导条件下雷达电磁盲区的预报研究

焦林;张永刚

(海军大连舰艇学院，辽宁大连 116018)

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20

Prediction of the electromagnetic shadow zone under the atmospheric duct

JIAO Lin;ZHANG Yong-gang

(Dalian Naval Academy, Dalian 116018， China)

Received:1900-01-01 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20

摘要/Abstract

摘要： 针对大气波导环境改变了电磁波的正常传播路径、影响雷达正常探测、造成雷达的电磁盲区的问题，利用中尺度数值预报模式，结合大气波导形成机制和电磁波传播理论，建立了两个数值耦合预报模式来解决雷达电磁盲区的预报问题，其中耦合模式A用来预报由蒸发波导造成的顶空盲区，耦合模式B用来预报由表面波导造成的跳跃盲区．通过对比分析可知，耦合模式用来预报雷达电磁盲区是行之有效的，预报结果和实测结果较好得吻合．

关键词: 电磁盲区, 顶空盲区, 跳跃盲区

Abstract: Atmospheric duct environment changes the normal path of electromagnetic wave propagation, affects the detection of radar and causes the electromagnetic shadow zone of radar. In this paper, we establish two coupling numerical forecasting models to solve the problems on forecasting the radar shadow zone, based on the mesoscale numerical prediction model and the electromagnetic wave propagation mechanism in atmospheric duct environment. The coupling model A is used to predict the top hole in the evaporation duct, the coupling model B is to predict the skip zone in the surface duct. It is concluded that the coupling models are effective to predicting the radar shadow zone.

Key words: electromagnetic shadow zone, top hole, skip zone

中图分类号:

TN956

焦林;张永刚. 大气波导条件下雷达电磁盲区的预报研究
[J]. J4, 2007, 34(6): 989-994.

JIAO Lin;ZHANG Yong-gang. Prediction of the electromagnetic shadow zone under the atmospheric duct
[J]. J4, 2007, 34(6): 989-994.