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Accelerated Direct Solver With Multiscale Compressed Block Decomposition and Multilevel Characteristic Basis Function Method
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DOI：10.1109/LAWP.2020.3028069.png)
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摘要
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In this letter, an accelerated fast direct solver based on the multiscale compressed block decomposition (MSCBD) and the multilevel characteristic basis function method (MLCBFM) is presented to analyze electrically large problems. The MSCBD is used to enhance the efficiency of the characteristic basis functions generation to accelerate the process of linear system solving in the MLCBFM. In addition, the MLCBFM can reduce the number of unknowns and improve the efficiency of MSCBD process. That means the MSCBD and MLCBFM can accelerate each other. The correctness and efficiency of the method are demonstrated with numerical results for several perfect electric conducting objects, by comparing with other methods.
Keyword:
Acceleration
Matrix decomposition
Method of moments
Binary trees
Erbium
Linear systems
Zirconium
Multiscale compressed block decomposition (MSCBD)
multilevel characteristic basis function method (MLCBFM)
method of moments (MoM)
fast direct solver
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期刊
IF:
4.8
论文数:
1.0W
被引数:
2.8W
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Accelerated Direct Solution of the Method-of-Moments Linear System.png)
PROCEEDINGS OF THE IEEE
PROCEEDINGS OF THE IEEEIF25.9
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