植物伪装遮障下车辆目标电磁散射精确仿真研究

doi:10.3969/j.issn.1000-1093.2012.01.020

兵工学报 ›› 2012, Vol. 33 ›› Issue (1): 121-128.doi: 10.3969/j.issn.1000-1093.2012.01.020

• 研究简报 • 上一篇

植物伪装遮障下车辆目标电磁散射精确仿真研究

张品，陈亦望，靳秀海

(解放军理工大学工程兵工程学院，江苏南京 210007)

收稿日期:2010-10-10 修回日期:2010-10-10 上线日期:2014-03-04
作者简介:张品（1981—），男，博士研究生
基金资助:
国家自然科学基金资助项目（10372038）；海军总后资助项目

Study of Accurate Simulation for Electromagnetic Scattering from Vehicle Under Vegetation Screen

ZHANG Pin, CHEN Yi-wang, JIN Xiu-hai

(Engineering Institute of Corps of Engineers, PLA University of Science and Technology, Nanjing 210007, Jiangsu, China)

Received:2010-10-10 Revised:2010-10-10 Online:2014-03-04

摘要/Abstract

摘要： 为了精确研究植物遮障下电大尺寸金属目标电磁散射特性，提出了一种高效混合计算模型。通过构造真实树结构对植物遮障的散射建立多层频域计算模型；基于时域有限差分方法，对目标区域的散射建立时域计算模型。运用互易性原理连接植物遮障计算模型与目标区域计算模型，避免了植物遮障与电大尺寸金属目标间复杂的电磁场相互作用，建立了对植物遮障下电大尺寸金属目标的高效、精确电磁散射特性仿真模型。通过以角反射器和典型金属车辆为目标的电磁散射计算实验，证明该方法正确、有效。

关键词: 电磁散射, 混合模型, 植物遮障

Abstract: An accurate simulation model is proposed to investigate the electromagnetic scattering behavior of electrically large targets under a vegetation screen accurately. The proposed model is composed of two electromagnetic-scattering sub-models. One makes use of realistic tree structures for founding multilayer vegetation scattering model in frequency domain. The other founds target scattering model in time domain based on finite difference time domain method. The electromagnetic interaction between electrically large target and screen is avoided very efficiently by using a reciprocity theorem to connect the two sub-models. The proposed method is proved to be exact and valid by electromagnetic computation tests for a dihedral corner reflector and a electrically large vehicle.

Key words: electromagnetic (EM) scattering, hybrid model, plant screen

中图分类号:

TP391.9

张品，陈亦望，靳秀海. 植物伪装遮障下车辆目标电磁散射精确仿真研究[J]. 兵工学报, 2012, 33(1): 121-128.

ZHANG Pin, CHEN Yi-wang, JIN Xiu-hai. Study of Accurate Simulation for Electromagnetic Scattering from Vehicle Under Vegetation Screen[J]. Acta Armamentarii, 2012, 33(1): 121-128.

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植物伪装遮障下车辆目标电磁散射精确仿真研究

Study of Accurate Simulation for Electromagnetic Scattering from Vehicle Under Vegetation Screen

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