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PIER PIER B PIER C PIER M PIER Letters
2009-06-10
The Combination of Bcgstab with Multifrontal Algorithm to Solve Febi-MLFMA Linear Systems Arising from Inhomogeneous Electromagnetic Scattering Problems
By
Xue Wei Ping,

    Dr. Xue Wei Ping

    School of Information Science and Engineering

    Southeast University

    China

    Homepage

Tie-Jun Cui,

    Professor Tie-Jun Cui

    Department of Radio Engineering

    Southeast University

    China

    Homepage

Wei Bing Lu

    Dr. Wei Bing Lu

    School of Information Science and Engineering

    Southeast University

    China

    Homepage

Progress In Electromagnetics Research, Vol. 93, 91-105, 2009
doi:10.2528/PIER09050604
Abstract
The hybrid finite-element/boundary-integral method (FEBI) combined with the multilevel fast multipole algorithm (MLFMA) has been applied to model the three-dimensional scattering problems of inhomogeneous media. The stabilized Bi-conjugate gradient (BCGATAB) iterative solver based on the inner-looking algorithm is proposed to solve the final FEBI linear system, and the multifrontal algorithm combined with the approximate minimal degree permutation (AMD) is used for the LU decomposition of the FEM matrix. The accuracy and efficiency of the combined algorithm has been validated in the final of the paper. Numerical results show that the proposed method can greatly improve the efficiency of FEBI for scattering problems of inhomogeneous media.
Citation
Xue Wei Ping, Tie-Jun Cui, and Wei Bing Lu, "The Combination of Bcgstab with Multifrontal Algorithm to Solve Febi-MLFMA Linear Systems Arising from Inhomogeneous Electromagnetic Scattering Problems," Progress In Electromagnetics Research, Vol. 93, 91-105, 2009.
doi:10.2528/PIER09050604
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