| 一种改进的显式辛算法 |
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| 引用本文： | 廖新浩,刘林.一种改进的显式辛算法[J].计算物理,1994,11(2):212-218. |
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| 作者姓名： | 廖新浩 刘林 |
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| 作者单位： | 南京大学天文系, 南京 210008 |
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| 基金项目： | 国家基础性研究重大关键项目 |
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| 摘 要： | 针对太阳系中大多数天体运动问题可用受摄二体问题模型来描述这一特点,采用算法的分解与合成,构造出一种改进的显式辛算法,其精度明显提高,数值计算结果证实了这一结论。
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| 关 键 词： | 受摄二体问题 算法的合成 辛算法 沿迹误差 |
| 收稿时间： | 1993-01-16 |
| 修稿时间： | 1993-07-26 |
A IMPROVED EXPLICIT SYMPLECTIC ALGORITHM |
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| Liao Xinhao,Liu lin.A IMPROVED EXPLICIT SYMPLECTIC ALGORITHM[J].Chinese Journal of Computational Physics,1994,11(2):212-218. |
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| Authors: | Liao Xinhao Liu lin |
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| Institution: | Astronomy department, Nanjing University, Nanjing 210008 |
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| Abstract: | Based on the property that the great majority of celestial motions in solar system can be described by the model of two-body problem with perturbations, we use the composition of algorithm to construct out a improved explicit symplectic algorithm with higher accuracy. Numerical results have shown that the algorithm have advantages in the computations of celestial orbits compared with usual symplectic algorithms. |
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| Keywords: | two-body problem with perturbations composition of algorithm symplectic algorithm along track error |
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