多空间投影分解法及参数优化并在电磁场问题上的应用  

Fast Convergence Pattern on Many Spaces for DPM with Optimal Parameters and Its Application to Electromagnetic Field Problems in the Multi Branch Domains

作　　者：孙连友[1] 洪伟[1] 

机构地区：[1]东南大学无线电工程系,江苏南京210096

出　　处：《应用科学学报》2002年第4期416-418,共3页Journal of Applied Sciences

摘　　要：为了提高复杂多枝区域上电磁场问题快投影分解法的计算效率 ,分析了最优参数选取并给出了其表达式 ,提高了实用效率 ,实际应用表明收敛速度也大大加快 .使用最优值快速投影分解法使得迭代次数大幅减少 。In order to effectually solve the electromagnetic field problems in the complex multi branch domains, this paper presents the fast convergence pattern on many spaces for decomposition projective method (DPM) with optimal parameters. The design and formula of the optimal parameters are also given. Practical application shows that the convergence rate is quicker than DPM. The iterative number of the fast convergence pattern with optimal parameters decreases greatly-about one third of that of DPM, and the efficienty is raised.

关 键 词：多空间投影分解法 参数优化 投影算子 多枝区域 电磁场方程 快速算法 收敛速度 

分 类 号：TB115[理学—数学] TM154.[理学—应用数学]