| 时域有限差分法中提高局部区域空间分辨率的技术 |
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| 引用本文： | 王长清,祝西里.时域有限差分法中提高局部区域空间分辨率的技术[J].北京大学学报(自然科学版),1993,29(1):65-70. |
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| 作者姓名： | 王长清 祝西里 |
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| 作者单位： | 北京大学无线电电子学系
(王长清)，北京大学无线电电子学系(祝西里) |
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| 摘 要： | 本文提出了一种在电磁场计算的时域有限差分法中使用非均匀网格空间的技术。用此方法只需把需要提高空间分辨率的局域区域的计算网格成倍地细分，而不必把全部计算空间均改用相同的网格，从而可以大大节省存储空间和计算时间。在二维空间通过计算实例证实了所提方法的可行性。
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| 关 键 词： | 时域有限差分法 局部空间 细分网格 |
A Technique for Increasing the Resolution of the Subdomain in Finite-Different Time-Domain Method |
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| WANG Chongqing,ZHU Xili.A Technique for Increasing the Resolution of the Subdomain in Finite-Different Time-Domain Method[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1993,29(1):65-70. |
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| Authors: | WANG Chongqing ZHU Xili |
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| Abstract: | The technique of un-uniform grid spaces for the Finite-Difference Time-Domain method (FD-TD method) has been developed in electromagnetic problems. In order to increasing the spacing resolution it is not necessary to fine the all computation space by using this method. Only the interested subdomain need to be fined. So the memory space and CPU time will be obviously saved. The feasibility of this method was certificated by the examples computed in two dimension. |
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| Keywords: | Finite-Difference Time-Domain method Subdomain Fine grid |
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