EFIE with a novel perturbed ILUT preconditioner for electromagnetic scattering by conducting objects in half space
作者： Lan-Wei Guo , Joshua Le-Wei Li , Yongpin P. Chen , Jun Hu
DOI: 10.1109/URSIGASS.2014.6929198
关键词:
摘要: In this paper, a highly efficient and robust scheme is proposed to analyzing electromagnetic (EM) scattering of arbitrary shaped perfect electrically conducting (PEC) objects in half space. The electric field integral equation (EFIE) with the half-space Green's function chosen as basis method due its great versatility accuracy. A perturbed dual threshold incomplete LU factorization (ILUT) preconditioner based on near-field interactions improved EFIE (IEFIE) operator an effective preconditioner. It will be further shown that such enhances stability traditional ILUT EFIE, which may occasionally encounter problems instability for real-life problems. Numerical examples are presented demonstrate high efficiency robustness over other existing alternative solutions.
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sci-hub.se 参考文章(15)
Bruno Carpentieri, Sparse preconditioners for dense linear systems from electromagnetic applications Toulouse, INPT. ,(2002)
Roger F. Harrington, Field computation by moment methods ,(1968)
A.C. Woo, H.T.G. Wang, M.J. Schuh, M.L. Sanders, EM programmer's notebook-benchmark plate radar targets for the validation of computational electromagnetics programs IEEE Antennas and Propagation Magazine. ,vol. 34, pp. 52- 56 ,(1992) , 10.1109/74.180645
Edmond Chow, Yousef Saad, Experimental study of ILU preconditioners for indefinite matrices Journal of Computational and Applied Mathematics. ,vol. 86, pp. 387- 414 ,(1997) , 10.1016/S0377-0427(97)00171-4
X.-C. Nie, L.-W. Li, N. Yuan, Precorrected-Fft Algorithm for Solving Combined Field Integral Equations in Electromagnetic Scattering Journal of Electromagnetic Waves and Applications. ,vol. 16, pp. 1171- 1187 ,(2002) , 10.1163/156939302X00697
P.L. Rui, R.S. Chen, Z.H. Fan, J. Hu, Z.P. Nie, Perturbed incomplete ILU preconditioner for efficient solution of electric field integral equations Iet Microwaves Antennas & Propagation. ,vol. 1, pp. 1059- 1063 ,(2007) , 10.1049/IET-MAP:20070082
Yongpin P. Chen, Weng Cho Chew, Lijun Jiang, A New Green's Function Formulation for Modeling Homogeneous Objects in Layered Medium IEEE Transactions on Antennas and Propagation. ,vol. 60, pp. 4766- 4776 ,(2012) , 10.1109/TAP.2012.2207332
J. M. Song, W. C. Chew, Multilevel fast‐multipole algorithm for solving combined field integral equations of electromagnetic scattering Microwave and Optical Technology Letters. ,vol. 10, pp. 14- 19 ,(1995) , 10.1002/MOP.4650100107
A.C. Woo, H.T.G. Wang, M.J. Schuh, M.L. Sanders, Benchmark radar targets for the validation of computational electromagnetics programs IEEE Antennas and Propagation Magazine. ,vol. 35, pp. 84- 89 ,(1993) , 10.1109/74.210840
Su Yan, Jian-Ming Jin, Zaiping Nie, Improving the Accuracy of the Second-Kind Fredholm Integral Equations by Using the Buffa-Christiansen Functions IEEE Transactions on Antennas and Propagation. ,vol. 59, pp. 1299- 1310 ,(2011) , 10.1109/TAP.2011.2109364