Iterative method of moments solution of problems involving electrically large and concave geometries

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Título:	Iterative method of moments solution of problems involving electrically large and concave geometries
Autor/a:	Heldring, Alexander; Rius Casals, Juan Manuel; Úbeda Farré, Eduard
Otros autores:	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio
Abstract:	This paper presents a study of the scaling with frequency (computational complexity) of preconditioned iterative solution, using the Multilevel Fast Multipole Method, of a class of radiation and scattering problems that exhibits particularly slow convergence: problems involving electrically large, open and concave geometries. A comparison is presented between a well-known state of the art preconditioner (ILU) and a recently introduced preconditioning method, the Multiscale Compressed Block Decomposition.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Informàtica::Informàtica teòrica::Algorísmica i teoria de la complexitat -Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Computational complexity -Accuracy -Complexity theory -Convergence -Electron tubes -Geometry -Iterative methods -Matrix decomposition -Complexitat computacional
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Tipo de documento:	Artículo - Versión publicada Objeto de conferencia
Editor:	Institute of Electrical and Electronics Engineers (IEEE)
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