计算埋地目标瞬态散射场的FDTD方法──TM情况  

FDTD Method for Evaluation the Scattered Fields of Buried Objects with a Transient Pulse Excitation-TM Case

作　　者：邵益民 

机构地区：[1]新乡市针织厂,新乡453002

出　　处：《河南机电高等专科学校学报》1998年第4期18-22,共5页Journal of Henan Mechanical and Electrical Engineering College

摘　　要：地下目标的瞬态电磁散射特性模拟对于探测，检验及识别埋地浅层目标的工程应用，特别是冲击探地雷达的研究具有重要的理论及应用价值。为此，本文对计算电磁学的时域有限差分（ＦＤＴＤ）法进行了研究，我们模拟了在高斯脉冲激励下地下多种无限长柱目标的散射场，结果表明ＦＤＴＤ方法可以精确，高效地模拟地下目标的瞬态电磁散射。It is of theoretical and applicant importance for simulation of the scattered signature of buried objects with a transient EM pulse excitation as the detection, and recognition of bodies buried underground, especially for the development of impulse ground radar. In this paper, the FDTD method is being inquired for this issue and used to simulate the scattered fields from cylinders with different materials, shapes, and buried depths. The results show that this method can accurately and effectively deal with such items, and further can give an convenient method for the extraction of the scattered signature.

关 键 词：瞬态电磁散射 时域有限差分(FDTD)法 冲击探地雷达 

分 类 号：TN957.5[电子电信—信号与信息处理]