Solution to some electromagnetic problems using fast Fourier transform with conjugate gradient method

Solution to some electromagnetic problems using fast Fourier transform with conjugate gradient method
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用共轭梯度法快速傅立叶变换求解一些电磁问题

DOI:
10.1049/el:19860719
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发表时间:
1986
影响因子:
1.1
通讯作者:
M. Cátedra
M. Cátedra
中科院分区:
工程技术4区
文献类型:
--
作者:
M. Cátedra

文献摘要

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利用快速傅里叶变换(FFT)计算共轭梯度法(CGM)中的卷积积分,得到了一种求解电磁场问题的有效数值方法。与矩量法(MM)相比,所提出的FFT-CGM避免了存储大型矩阵,并减少了数量级的计算机时间。
Using the fast Fourier transform (FFT) to compute the convolution integrals that appear in the conjugate-gradient method (CGM), an efficient numerical procedure to solve electromagnetic problems is obtained. In comparison with the method of moments (MM), the proposed FFT-CGM avoids the storage of large matrices and reduces the computer time by orders of magnitude.