Title :
The Multiscale Compressed Block Decomposition as a preconditioner for method of moments computations
Author :
Heldring, Alex ; Ubeda, Eduard ; Rius, J.M.
Author_Institution :
Dept. of Signal Process. & Telecommun., Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
A new preconditioner for Method of Moments computations is presented. It is based on a direct solver, the Multiscale Compressed Block Decomposition method, which has been adapted to reduce storage requirements and setup time. Numerical experiments show considerable improvement in overall efficiency in comparison with common preconditioners such as Incomplete LU decomposition, in particular for problems involving electrically large, open geometries.
Keywords :
method of moments; direct solver; electrically-large open geometries; incomplete LU decomposition; method of moment computations; multiscale compressed block decomposition method; setup time reduction; storage requirement reduction; Antennas; Convergence; Impedance; Linear systems; Matrix decomposition; Method of moments; Fast Solvers; Method of Moments; Preconditioners;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
