计算物理 ›› 2012, Vol. 29 ›› Issue (3): 399-405.

• 论文 • 上一篇    下一篇

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

朱小敏1, 任新成1, 郭立新2   

  1. 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
  • 收稿日期:2011-07-28 修回日期:2011-12-09 出版日期:2012-05-25 发布日期:2012-05-25
  • 作者简介:朱小敏(1975-),男,硕士,讲师,研究电磁(光)渡在复杂系统中的传播和散射,E-mail:ydzxml23@163.com
  • 基金资助:
    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

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

ZHU Xiaomin1, REN Xincheng1, GUO Lixin2   

  1. 1. School of Physics and Electronic Information, Yanan University, Yan'an 716000, China;
    2. School of Sciences, Xidian University, Xi'an 710071, China
  • Received:2011-07-28 Revised:2011-12-09 Online:2012-05-25 Published:2012-05-25

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.

关键词: 复合电磁散射, 一维带限Weierstrass分形地面, 分层介质, FDTD

Abstract: 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.

Key words: composite electromagnetic scattering, 1D band-limited Weierstrass fractal land surface, layered medium, FDTD

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