表面波导条件下雷达的探测特征  

Study on the Radar Detecting Performance in Surface Duct Conditions

作　　者：王华[1] 张永刚[1] 黄小毛[1] 唐海川[1] 

机构地区：[1]海军大连舰艇学院,辽宁大连116018

出　　处：《系统工程与电子技术》2003年第10期1212-1215,共4页Systems Engineering and Electronics

摘　　要：大气波导会使雷达电磁波传播产生异常现象 ,研究其对雷达探测范围的影响具有重要意义。利用抛物方程模式及分步傅里叶算法对电磁波在表面波导条件下的传播进行数值模拟 ,给出了雷达探测区域的评估模式。结合在福建平潭的试验对模式的正确性加以验证 ,论述了舰载主动雷达在表面波导条件下探测时所产生的超视距、波导顶部盲区和跳跃盲区等现象 ,得出了雷达在表面波导条件下的探测特征。Electromagnetic wave of radar propagates abnormally in the duct. It is very important to study the influence of the duct on radar detecting zone. Electromagnetic wave propagation in surface duct is modeled with the paraolic equation method and split-step Fourier method, and the evaluation mode for radar detecting zone is depicted. The experiment done in Pingtan, Fujian province proves the validity of the mode. The phenomena of radar hole and skip zones in the surface duct are described. The radar detecting performances in this atmospheric ducts are obtained.

关 键 词：表面波导 傅里叶算法 雷达探测 

分 类 号：TN953[电子电信—信号与信息处理]