物理学报2012，Vol.61Issue(14)：165-174,10.
雪层覆盖的粗糙地面与上方矩形截面柱复合电磁散射的时域有限差分法研究
Investigation of electromagnetic scattering interaction between the column with rectangular cross-section and rough land surface covered with snow using finite difference time domain method
摘要
Abstract
The dielectric properties of the actual land surface and snow deposit are described using the four-component model of dielectric constant of soil and the dielectric constant model of snow respectively.The actual rough land surface is simulated with the model of exponential type distribution rough surface and Monte Carlo method,the composite electromagnetic scatterings from the rough land surface covered with snow and the column with rectangular cross-section above it are studied using the finite-difference time-domain method,the curves of angular distribution of composite scattering coefficient are obtained,the bistatic composite scattering coefficient varying with the roughness parameter and dielectric parameter of soil and snow,the geometric parameter and dielectric parameter of the column with rectangular cross-section are calculated in detail.The characteristics of the composite scattering coefficient from rough land surface covered with snow and the column with rectangular cross-section above it are also obtained.关键词
时域有限差分法/电磁散射/粗糙地面/矩形截面柱Key words
finite difference time domain/electromagnetic scattering/rough land surface/column with rectangular cross-section分类
信息技术与安全科学引用本文复制引用
任新成,郭立新,焦永昌..雪层覆盖的粗糙地面与上方矩形截面柱复合电磁散射的时域有限差分法研究[J].物理学报,2012,61(14):165-174,10.基金项目
国家自然科学基金 （）
中国博士后科学基金项目 （）
陕西省自然科学基金（批准号：2010JM8017）资助的课题~~ （）
