Preconditioned Multilevel Fast Inhomogeneous Plane Wave Algorithm for Solving Electromagnetic Scattering Problems
作者单位：College of Electronic EngineeringUniversity of Electronic Science and Technology of China
会议名称：《2006 7th International Symposium on Antennas, Propagation and EM Theory》
会议日期：2006年
学科分类：080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
基 金：supported by NSFC(No.60431010)
关 键 词：RCS Preconditioned Multilevel Fast Inhomogeneous Plane Wave Algorithm for Solving Electromagnetic Scattering Problems
摘 要：A mesh-neighbor preconditioner is implemented into the multilevel fast inhomogeneous plane wave algorithm （MLFIPWA）,to solve three dimensional electromagnetic scattering problems more *** spectrum integration of the Green s function and grouping technique are used in FIPWA to translate the direct source and field interaction into aggregation,translation and disaggregation,to accelerate the matrix-vector *** computation complexity of this algorithm is O(N).By applying a multilevel strategy, this complexity can be reduced to O（N log N）.To further speed up the solution process,a mesh-neighbor preconditioner is applied into this fast algorithm. Numerical results show the accuracy and efficiency of this algorithm.