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Loose GMRES method for efficient solution of EFIE in the MLFMA context

✍ Scribed by D. Z. Ding; P. L. Rui; R. S. Chen; Z. H. Fan

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 197 KB
Volume: 49
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.22816

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✦ Synopsis

Abstract

The loose generalized minimum residual method (LGMRES) accelerated by multilevel fast multipole algorithm (MLFMA) is discussed for solving large dense linear systems that arise in the electric field integral equation (EFIE) formulation of electromagnetic scattering problems. The LGMRES is used to improve convergence by relieving restarting effect in the convensional GMRES iterative method, and the MLFMA is used to speed up the matrix‐vector product operations. As a result, nearly eight times convergence improvement is achieved for electromagnetic scattering (EM) from three‐dimensional (3D) conducting bodies. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2661–2665, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22816

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