【作者】 孙慧玲； 朱汉清； 陈如山； 樊振宏； 丁大志；

【Author】 H.L.Sun,H.Q.Zhu,R.S.Chen,Z.H.Fan and D.Z.Ding Department of Communication Engineering, Nanjing University of Science and Technology,Nanjing,210094

【机构】 南京理工大学通信工程系；

【摘要】 本文提出了在超松弛迭代方法(SOR)迭代的过程中,自适应地选取最佳松弛因子来高效求解计算电磁学中的问题。文中以有限差分方法(FDM)计算微带线特性阻抗为例,应用自适应超松弛迭代技术,结果表明这种方法是有效的。与传统的经验选取松弛因子的方法相比,文中提出的自适应方法更加优越。不仅能够正确的选出了最佳松弛因子还加速了迭代收敛。更多还原

【Abstract】 In this paper,an adaptive method is presented to automatically select the best relaxation factor in the successive over relaxation method(SOR) in computational electromagnetics.Based on the finite difference method(FDM),the property impedance of a microstrip is computed as a example.Numerical results show that the proposed adaptive SOR method is very effective.When compared with traditional method where the selection of the relaxation factor is based on experience,the new method can not only select the optimal relaxation factor,but also accelerates the convergence of the iteration.更多还原