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含复杂细节结构的金属目标电磁散射ACE-MLFMA分析 被引量:2

Analysis of Electromagnetic Scattering from PEC Objects with Complex and Fine Features Based on ACE-MLFMA Algorithm
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摘要 多层快速多极子算法(MLFMA)在计算含复杂细节结构目标的散射问题时,求解效率会迅速下降。本文介绍了快速笛卡尔展开(ACE)算法及其与MLFMA的结合,使得原先MLFMA的最细层能够再局部细分,加速了阻抗矩阵的填充和迭代求解。本文将该混合算法应用于求解含复杂细节结构目标的电磁散射问题,包括具有尖端的杏仁核和由复杂带线结构构成的频率选择表面,计算实例验证了该方法求解效率的提高和内存开销的减少,以及算法的可靠性和高效性。 多层快速多极子算法(MLFMA)在计算含复杂细节结构目标的散射问题时,求解效率会迅速下降。本文介绍了快速笛卡尔展开(ACE)算法及其与MLFMA的结合,使得原先MLFMA的最细层能够再局部细分,加速了阻抗矩阵的填充和迭代求解。本文将该混合算法应用于求解含复杂细节结构目标的电磁散射问题,包括具有尖端的杏仁核和由复杂带线结构构成的频率选择表面,计算实例验证了该方法求解效率的提高和内存开销的减少,以及算法的可靠性和高效性。
出处 《微波学报》 CSCD 北大核心 2012年第S3期5-8,共4页 Journal of Microwaves
关键词 细节结构 电磁散射 快速算法 快速笛卡尔展开 fine features electromagnetic scattering fast algorithm accelerated Cartesian expansion
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