埋地介质地雷电磁散射计算  

Scattering from Buried Dielectric Landmine

作　　者：孙晓坤[1] 周智敏[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《系统仿真学报》2008年第20期5451-5454,共4页Journal of System Simulation

摘　　要：为降低超宽带合成孔径雷达探雷中地雷检测的虚警,需要根据地雷的电磁散射特性设计检测器。把介质地雷等效为双圆柱结构,利用旋转体的结构特征用矩量法计算了半空间地雷的电磁散射,对各个步骤进行了详细分析。最后给出了某型号埋地塑料地雷电磁散射的计算结果,并与相同条件下同型号金属地雷的电磁散射进行了比较,分析了两者的不同特性,结果表明相同条件下介质地雷的散射回波与金属地雷的回波非常相似,但幅度明显小于金属地雷。The false alarms in detecting landmines is the main problem of the practicality of ultra-wideband synthetic aperture radar （UWB SAR）. To reduce the false alarms,the detector should be designed based on the electromagnetic characteristics of the landmine. Dielectric landmine was regarded as a pair of cylinders,scattering from landmine buried in a lossy,dispersive half space was analyzed,and each step of calculating was listed. In the end,the theoretical results between metal and dielectric mines were compared. It shows that the RCS of two mines is similar,but the magnitude of dielectric mine is smaller than that of metal mine.

关 键 词：矩量法 电磁散射 地雷 超宽带合成孔径雷达 

分 类 号：TN957[电子电信—信号与信息处理]