Scattering From Two-Dimensional Objects of Varying Shape Combining the Multilevel Fast Multipole Method (MLFMM) With the Stochastic Galerkin Method (SGM)
Scattering From Two-Dimensional Objects of Varying Shape Combining the Multilevel Fast Multipole Method (MLFMM) With the Stochastic Galerkin Method (SGM)
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DOI：
10.1109/lawp.2014.2333567
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发表时间：
2014-06
影响因子：
4.2
通讯作者：
Z. Zubac;D. De Zutter;D. Vande Ginste
中科院分区：
文献类型：
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作者：
Z. Zubac;D. De Zutter;D. Vande Ginste
在这封信中，多层快速多极子方法 (MLFMM) 与多项式混沌展开 (PCE) 方法相结合，对散射体的随机变化进行建模。特别是，它演示了如何将随机伽辽金法 (SGM) 与 MLFMM 加速矩法 (MoM) 相结合，以及如何在随机情况下保留 MLFMM 对电磁大散射体的有益效果。
In this letter, the Multilevel Fast Multipole Method (MLFMM) is combined with the polynomial chaos expansion (PCE) approach to model the stochastic variations of a scatterer. In particular, it is demonstrated how the Stochastic Galerkin Method (SGM) can be combined with an MLFMM accelerated method of moments (MoM) and how the beneficial effects of the MLFMM for electromagnetically large scatterers are retained in the stochastic case.