Regularization of the moment matrix solution by a nonquadraticconjugate gradient method |
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Authors: | Knockaert L De Zutter D |
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Affiliation: | Dept. of Inf. Technol., INTEC, Ghent; |
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Abstract: | Inspired by Tikhonov regularization, a nonlinear conjugate gradient method is proposed with the purpose of simultaneously regularizing and solving the moment matrix equation. The procedure is based on a nonquadratic conjugate gradient algorithm with exact line search, restart, and rescale. Applied to the problem of TM scattering by perfectly conducting rectangular cylinders, the method is shown to exhibit a fast convergence rate |
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