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一种应用于目标宽带RCS快速计算的高效预处理技术

赵克明 孙玉发

赵克明, 孙玉发. 一种应用于目标宽带RCS快速计算的高效预处理技术[J]. 电子与信息学报, 2011, 33(4): 992-996. doi: 10.3724/SP.J.1146.2010.00756
引用本文: 赵克明, 孙玉发. 一种应用于目标宽带RCS快速计算的高效预处理技术[J]. 电子与信息学报, 2011, 33(4): 992-996. doi: 10.3724/SP.J.1146.2010.00756
Zhao Ke-Ming, Sun Yu-Fa. A High Efficient Preconditioning Technique Applied to the Fast Calculation of Wide-band RCS of Objects[J]. Journal of Electronics and Information Technology, 2011, 33(4): 992-996. doi: 10.3724/SP.J.1146.2010.00756
Citation: Zhao Ke-Ming, Sun Yu-Fa. A High Efficient Preconditioning Technique Applied to the Fast Calculation of Wide-band RCS of Objects[J]. Journal of Electronics and Information Technology, 2011, 33(4): 992-996. doi: 10.3724/SP.J.1146.2010.00756

一种应用于目标宽带RCS快速计算的高效预处理技术

doi: 10.3724/SP.J.1146.2010.00756
基金项目: 

国家自然科学基金(60771034),安徽省教育厅自然科学研究重点项目(KJ2010A020)和安徽大学211工程学术创新团队基金资助课题

A High Efficient Preconditioning Technique Applied to the Fast Calculation of Wide-band RCS of Objects

  • 摘要: 矩量法常与渐近波形估计技术结合用于目标宽带雷达散射截面的快速计算,然而当目标为电大尺寸时,此种方法仍然十分耗时。该文使用一种基于可变内外迭代技术的Krylov子空间迭代法FBICGSTAB求解由电场积分方程离散得到的大型稠密矩阵方程。同时近场矩阵预处理技术将与双阈值不完全LU分解预处理技术结合用于降低FBICGSTAB的迭代求解次数。数值计算表明:在不影响精度的前提下,该文方法可以大大提高目标宽带雷达散射截面的计算效率。
  • Ding D Z, Chen R S, and Fan Z H. SSOR preconditioned inner-outer flexible GMRES method for MLFMM analysis of scatterung of open objects [J].Progress In Electromagnetics Research.2009, 89(1):339-357[3]Lee J, Zhang Jun, and Lu Cai-Cheng. Incomplete LU preconditioning for large scale dense complex linear systems from electromagnetic wave scattering problems [J].Journal of Computational Physics.2003, 185(1):158-175[4]Malas T and Grel L. Incomplete LU preconditioning with the multilevel fast multipole algorithm for electromagnetic scattering [J].SIAM Journal on Scientific Computing.2007, 29(4):1476-1494[5]Malas T and Grel L. Accelerating the multilevel fast multipole algorithm with the sparse- approximate-inverse (SAI) preconditioning [J].SIAM Journal on Scientific Computing.2009, 31(3):1968-1984[7]Ding D Z, Chen R S, and Fan Z H. Application of two-step spectral preconditioning technique for electromagnetic scattering in half space [J].Progress In Electromagnetics Research.2009, 94(1):383-402[8]Vogel J A. Flexible BICG and flexible Bi-CGSTAB for nonsymmetrical linear systems [J].Applied Mathematics and Computation.2007, 188(1):226-233[9]Reddy C J, Deshpande M D, Cockrell C R, and Beck F B. Fast RCS computation over a frequency band using method of moments in conjunction with asymptotic waveform evaluation technique [J].IEEE Transactions Antennas and Propagation.1998, 46(8):1229-1233[10]Rao S M, Wilton D R, and Glisson A W. Electromagnetic scattering by surfaces of arbitrary shape [J].IEEE Transactions Antennas and Propagation.1982, 30(3):409-418[11]Asvestas J S, Yankovich S P, and Allen O E. Calculation of the impedance matrix inner integral to prescribed precision [J].IEEE Transactions Antennas and Propagation.2010, 58(2):479-487[12]Saad Y and Schultz M H. GMRES: a generalized minimal residual algorithm for solving nonsymmetrical linear systems [J].SIAM Journal on Scientific and Statistical Computing.1986, 7(3):856-869
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出版历程
  • 收稿日期:  2010-07-19
  • 修回日期:  2010-12-01
  • 刊出日期:  2011-04-19

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