| 自适应小波多重网格方法及其计算效率 |
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| 引用本文： | 宋玉明,方大纲.自适应小波多重网格方法及其计算效率[J].南京理工大学学报(自然科学版),1997,21(3):193-196. |
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| 作者姓名： | 宋玉明 方大纲 |
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| 作者单位： | 南京理工大学电子工程与光电技术学院!南京210094 |
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| 基金项目： | 国家自然科学基金，高校博士点基金 |
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| 摘 要： | 小波多重网格法是一种易于操作的计算电磁场中的大系统问题的有效方法，但是，经观察发现，计算时间强烈地依赖于粗经层上的迭代次数，该文采取了自适应技术，构造自适应小波多重网络法，实现了粗细层间的自适应转换，使每一层上的迭代次数达到最佳取值，以得到最快的收敛效果，文中还讨论了这种自适应小波多重网格方法的计算效率问题。
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| 关 键 词： | 电磁场 计算 小波 多重网络法 自适应技术 |
The Construction and Efficiency of the Adaptive Wavelet-based Multigrid Method |
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| Song Yuming, Fang Dagang.The Construction and Efficiency of the Adaptive Wavelet-based Multigrid Method[J].Journal of Nanjing University of Science and Technology(Nature Science),1997,21(3):193-196. |
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| Authors: | Song Yuming Fang Dagang |
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| Abstract: | Wavelet-based multigrid method is an efficient method for large system in electromagnet1cs- It is observed that CPU time depends strongly on the number of iterations on each level. To solve this prollem,the adaptlve wavelet-based multigrid method is constructed by making use of an adaptive technique. The transfer between the finer and coarser level is done automatically. The fastest convergence is gained. The construction of the algorithm is given in detail. The comparison between this algorithm and the conventional wavelet-based multigrid method shows that the reduction of the computer time is obvious. |
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| Keywords: | electromagnetic fields calculation efficiency wavelet multigrid method adaptive technique |
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