埋地金属地雷电磁散射计算  

Scattering from Buried Metal Landmines

作　　者：孙晓坤[1] 周智敏[1] 王建[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院

出　　处：《微波学报》2008年第4期5-9,14,共6页Journal of Microwaves

摘　　要：目前超宽带SAR探雷实用化的主要问题是虚警率过高,为了降低地雷检测的虚警,需要根据地雷的电磁散射特性设计检测器。本文把金属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,并与轨道地表穿透SAR实测数据进行了比较,两者结果基本吻合,验证了计算方法的有效性。The false alarms in landmine detection is the main problem of the practicality of ultra - wideband （UWB） synthetic aperture radar （SAR）. To reduce the false alarms, the detector should be designed based on the electromagnetic characteristics of landmines. Regarding landmines as a pair of cylinders, this paper analyses scattering from landmines buried in a lossy, dispersive half space. The calculations are performed using a Method of Moments （MoM） algorithm for bodies of revolution. In the end, this paper compares the theoretical results and the experimental results collected by the Rail ground penetrating SAR. The agreement is good, which shows that the algorithm is very efficient.

关 键 词：矩量法 电磁散射 地雷 

分 类 号：TJ512[兵器科学与技术—军事化学与烟火技术]