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物理学报 2009
A novel approach of dual GPOF /DCIM for fast computation of the sommerfeld integrals and electromagnetic scattering from an object partially embedded in dielectric half-space
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Abstract:
混合势积分方程（mixed-potential electric field integral equation, MPIE）由于其Green函数的低阶奇异性是矩量法（MoM）等数值方法求解散射问题的主要方程.在跨界面目标的散射问题中，MPIE中的矢量势和标量势Green函数包含Sommerfeld类型的谱域积分，利用离散复镜像法（discrete complex image method, DCIM）和Sommerfeld恒等式，将其转化为有限项复镜像Green函数的求和运算，避免了烦杂的谱域积分运算.
