摘要
利用迭代物理光学法(IPO)计算一般电大尺寸腔体的电磁散射特性,在迭代过程中用快速多极子方法(FMM)加速计算。在雅可比最小残差法(JMRES)的积分运算中引入FMM并与共扼梯度法(CG)的计算效率进行了比较。采用结构化分组,利用转移因子的平移不变性对计算和存储进行了优化。计算结果表明这些加速方法是有效的并能极大地提高计算效率。
The IPO method is applied to solve scattering of three-dimensional cavity. In the iterative process of IPO, the fast multipole method （FMM） is employed to accelerate computation. FMM is introduced to the integral operation of jacobi Minimal Residual（JMRES） and the efficiency of JMRES＋FMM, and the conjugate gradient （CG） method is compared here. To optimize calculation and storage, the cavity is grouped in a form of structured and the invariance of translation of translator is employed. The numerical results presented to show the method is effective and can improve computational efficiency greatly.
出处
《电波科学学报》
EI
CSCD
北大核心
2006年第6期848-852,858,共6页
Chinese Journal of Radio Science
关键词
迭代物理光学法
腔体
快速多极子
雅可比最小残差法
iterative physical optics, cavity, fast multipole method, Jacobi minimal residual method
