一维带限Weierstrass分形分层地面与矩形截面导体柱复合电磁散射FDTD研究  

FDTD Investigation on Electromagnetic Scattering of 1D Band-limited Weierstrass Fractal Layered Land Surface and a Conducting Column with Rectangular Cross-section

作　　者：朱小敏[1] 任新成[1] 郭立新[2] 

机构地区：[1]延安大学物理与电子信息学院,陕西延安716000 [2]西安电子科技大学理学院,陕西西安710071

出　　处：《计算物理》2012年第3期399-405,共7页Chinese Journal of Computational Physics

基　　金：国家自然科学基金(60971067);中国博士后科学基金(20090461284);陕西省自然科学基金(2010JM8017)资助项目

摘　　要：运用时域有限差分方法研究一维带限分形分层粗糙地面与矩形截面导体柱的复合电磁散射,计算复合电磁散射的双站散射系数,得到复合散射系数随散射角的变化,讨论粗糙面高度起伏均方根、分维、中间层介质、下层介质及矩形截面导体柱的参数等对复合散射系数的影响.Composite electromagnetic scattering of 1D band-limited Weierstrass fractal layered rough land surface and a conducting column with rectangular cross-section is studied with FDTD. Composite scattering coefficient with varying scattering angle is obtained based on bistatic scattering coefficient. Influence of root-mean-square of height fluctuation, dimension of fractal, parameters of the middle layer medium, lower medium and conducting column with rectangular cross-section on composite scattering coefficient is discussed.

关 键 词：复合电磁散射 一维带限Weierstrass分形地面 分层介质 FDTD 

分 类 号：TN011[电子电信—物理电子学]