【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。更多还原

【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.更多还原