| Total Field and Scattered Field Technique for Fourth-Order Symplectic Finite Difference Time Domain Method |
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| 引用本文： | 沙威 黄志祥 吴先良 陈明生. Total Field and Scattered Field Technique for Fourth-Order Symplectic Finite Difference Time Domain Method[J]. 中国物理快报, 2006, 23(1): 103-105 |
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| 作者姓名： | 沙威 黄志祥 吴先良 陈明生 |
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| 作者单位： | Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education, Anhui University, Hefei 230039 |
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| 基金项目： | Supported partially by the National Natural Science Foundation of China under Grant No 6037104. |
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| 摘 要： | Using symplectic integrator propagator, a three-dimensional fourth-order symplectic finite difference time domain （SFDTD） method is studied, which is of the fourth order in both the time and space domains. The method is nondissipative and can save more memory compared with the traditional FDTD method. The total field and scattered field （TF-SF） technique is derived for the SFDTD method to provide the incident wave source conditions. The bistatic radar cross section （RCS） of a dielectric sphere is computed by using the SFDTD method for the first time. Numerical results suggest that the SFDTD algorithm acquires better stability and accuracy compared with the traditional FDTD method.
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| 关 键 词： | 有限差分时域法 稳定性 准确度 电介质 |
| 收稿时间： | 2005-09-20 |
| 修稿时间： | 2005-09-20 |
Total Field and Scattered Field Technique for Fourth-Order Symplectic Finite Difference Time Domain Method |
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| SHA Wei, HUANG Zhi-Xiang, WU Xian-Liang, CHEN Ming-Sheng. Total Field and Scattered Field Technique for Fourth-Order Symplectic Finite Difference Time Domain Method[J]. Chinese Physics Letters, 2006, 23(1): 103-105 |
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| Authors: | SHA Wei HUANG Zhi-Xiang WU Xian-Liang CHEN Ming-Sheng |
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