埋地目标电磁散射分析的高效积分方程方法
Efficient Integral Equation Method for Electromagnetic Scattering from Buried Objects
本文提出一种用于分析埋地目标电磁散射的高效分析方法。首先推导了半空间格林函数,用于模拟无限大地层的背景散射。基于此建立相应的积分方程,进而采用多层自适应交叉近似算法,加速埋地电大目标的计算。最后,利用积分算子的卡尔德隆投影特性,发展了适用于半空间目标的高效预条件方法,以改善迭代算法的收敛性。数值算例验证了该方法的高效性。
In this paper, a highly efficiently method is developed for analyzing electromagnetic scattering from objects buried under ground. To model the background scattering from the infinitely large ground, the half-space Green's function is first derived. The corresponding integral equation is then formulated based on it. The multilevel adaptive cross approximation is further adopted to accelerate the calculation. Finally, to improve the convergence of the iterative solver, an effective preconditioner for half space is developed by utilizing the Calderon projection property of the integral operators. Numerical results demonstrate the efficiency of this method.
孟敏、陈涌频
电工基础理论数学物理学
无线电波传播电磁散射半空间积分方程预条件
Wireless radio wave propagationelectromagnetic scatteringhalf spaceintegral equationpreconditioner
孟敏,陈涌频.埋地目标电磁散射分析的高效积分方程方法[EB/OL].(2016-05-17)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/201605-536.点此复制
评论