运动导体平面电磁散射的FDTD仿真  

FDTD Simulation for Electromagnetic Scattering of Moving Perfectly Conducting Planes

作　　者：张向前[1] 聂在平[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子科技大学学报》2010年第2期176-181,共6页Journal of University of Electronic Science and Technology of China

基　　金：国家973项目(6136001);国家自然科学基金重点项目(60431010);高等学校学科创新引智计划(B07046)

摘　　要：提出了一种用于运动导体平面目标电磁散射问题的新方法。该方法基于时域有限差分方法,在分界面处利用相对边界条件进行处理。和其他方法相比,该方法不需要进行坐标系的变换,也不需要在分界面处对入射场进行插值和确定总场的存放位置,因此更节省计算量和计算时间。用该方法对高速运动的无限大金属导体表面的电磁散射进行了仿真,数值计算结果表明了该方法的精确性与高效性。A new method for modeling moving and perfectly conducting objects is proposed using a numerical technique based on the finite-difference time domain （FD-TD） method. Contrary to any other method, the numerical technique used does not require a coordinate transformation, the linear interpolation for the value of the incident field at the interface between the two different materials, and the determining of the position of the total field. This leads to saving calculation amount and CPU time. The electromagnetic wave scattering properties of a moving and perfectly conducting surface are analyzed using the numerical technique. Results obtained are given to show the high accuracy and efficiency of this new technique.

关 键 词：电磁散射 时域有限差分 运动目标 相对边界条件 

分 类 号：TN011[电子电信—物理电子学]