现代电子技术2024，Vol.47Issue(3)：143-148,6.DOI:10.16652/j.issn.1004-373x.2024.03.026
横向沙丘表面与上方矩形截面柱复合电磁散射的FDTD研究
Study on composite electromagnetic scattering from surface of transverse dune and rectangular cross-section column above by FDTD
摘要
Abstract
The exponential distribution and Gaussian distribution are used to represent the height fluctuation of the desert surface,respectively.The Monte Carlo method is used to simulate the horizontal sand dune surface and the flat desert surface between sand dunes.The dielectric constant of sand soil is calculated by the general formula of soil moisture and dielectric constant proposed by Herkelrath.The root mean square of height fluctuation and incident angle are analyzed by FDTD numerical calculation method.The effects of object length,object width,object height,the height of transverse dunes and the horizontal distance from the windward slope bottom to the slope top of transverse dunes on the scattering coefficient are obtained,and the composite electromagnetic scattering characteristics of the surface of transverse dunes and the object above are obtained.The differences of angular distribution curves of scattering coefficients when the rough surface is in exponential distribution and Gaussian distribution are analyzed.关键词
FDTD/复合电磁散射/横向沙丘/上方目标/粗糙面/散射系数Key words
FDTD/composite electromagnetic scattering/transverse dune/upper object/rough surface/scattering coefficient分类
信息技术与安全科学引用本文复制引用
杨能勋,任新成,王玉清,朱小敏,董子宇..横向沙丘表面与上方矩形截面柱复合电磁散射的FDTD研究[J].现代电子技术,2024,47(3):143-148,6.基金项目
国家自然科学基金项目(61861043) （61861043）
国家自然科学基金项目(62061048) （62061048）
国家自然科学基金项目(61801416) （61801416）
复旦大学电磁波信息科学教育部重点实验室开放基金(EMW201910) （EMW201910）
