| GPU加速混合场积分方程求解导体目标散射问题 |
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| 引用本文： | 王 健,顾长青,李 茁,段腾飞.GPU加速混合场积分方程求解导体目标散射问题[J].太赫兹科学与电子信息学报,2014,12(1):67-70. |
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| 作者姓名： | 王 健 顾长青 李 茁 段腾飞 |
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| 作者单位： | College of Electronic and Information Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing Jiangsu 210016，China;College of Electronic and Information Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing Jiangsu 210016，China;College of Electronic and Information Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing Jiangsu 210016，China;College of Electronic and Information Engineering，Nanjing University of Aeronautics and Astronautics，Nanjing Jiangsu 210016，China |
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| 基金项目： | 江苏高校优势学科建设工程资助项目；国家自然科学基金资助项目(61071019)；东南大学基本科研业务费资助项目；江苏省普通高校研究生科研创新计划资助项目(CXLX13_092) |
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| 摘 要： | 利用图形处理单元（GPU）加速混合场积分方程（CFIE）分析导体目标电磁散射问题。较电场积分方程（EFIE）和磁场积分方程（MFIE），CFIE消除了内谐振问题，并且具有更好的条件数。求解的数值方法为基于 RWG基函数的矩量法（MoM）。所有计算步骤均在 GPU上实现，包括：阻抗元素填充、电压向量填充、矩阵方程的共轭梯度（CG）求解、雷达散射截面（RCS）计算。在保证数值精确度的前提下获得了数十倍的速度提升。
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| 关 键 词： | 图形处理单元 混合场积分方程 矩量法 共轭梯度法 雷达散射截面 |
| 收稿时间： | 2013/1/11 0:00:00 |
| 修稿时间： | 2013/3/22 0:00:00 |
Acceleration of CFIE for solving conductor target scattering problems by exploiting the GPU |
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| WANG Jian,GU Chang-qing,LI Zhuo and DUAN Teng-fei.Acceleration of CFIE for solving conductor target scattering problems by exploiting the GPU[J].Journal of Terahertz Science and Electronic Information Technology,2014,12(1):67-70. |
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| Authors: | WANG Jian GU Chang-qing LI Zhuo and DUAN Teng-fei |
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| Affiliation: | (College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 210016, China) |
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| Abstract: | The electromagnetic scattering analysis of conductor targets with Combined Field Integral Equation(CFIE) is accelerated by exploiting the Graphics Processing Unit(GPU). Compared with the Electric Field Integral Equation(EFIE) and Magnetic Field Integral Equation(MFIE), the CFIE could eliminate interior resonance problems, and has better condition number. The numerical technique is the Method of Moment(MoM) that based on RWG basis functions. And all the procedures are completed by the GPU, including impedance matrix filling, voltage vector filling, matrix equation solving with Conjugate Gradient(CG) algorithm, and the Radar Cross Section(RCS) calculation. More than ten times of speedups are achieved under the precondition to ensure the numerical accuracy. |
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| Keywords: | Graphics Processing Unit Combined Field Integral Equation Method of Moment Conjugate Gradient Radar Cross Section |
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