| 弹道扰动引力的有限元逼近算法 |
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| 引用本文： | 赵东明,吴晓平.弹道扰动引力的有限元逼近算法[J].测绘学院学报,2002,19(2):99-101. |
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| 作者姓名： | 赵东明 吴晓平 |
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| 作者单位： | 信息工程大学测绘学院 河南郑州450052
(赵东明)，信息工程大学测绘学院 河南郑州450052(吴晓平) |
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| 摘 要： | 为了克服多项式逼近弹道扰动引力的缺点，根据有限元插值的原理，采用了对弹道周围空间区域进行有限元剖分的方法，利用剖分单元各顶点的扰动引力分量内插出弹道点对应的扰动引力分量值。结果表明，文中提出的逼近算法能够快速精确可靠地逼近弹道扰动引力，是一种具有应用价值的方法。
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| 关 键 词： | 扰动引力 有限元 内插 |
The Method of Finite Element Approximation of the Trajectory Disturbing Gravity |
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| ZHAO Dong ming,WU Xiao ping.The Method of Finite Element Approximation of the Trajectory Disturbing Gravity[J].Journal of Institute of Surveying and Mapping,2002,19(2):99-101. |
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| Authors: | ZHAO Dong ming WU Xiao ping |
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| Abstract: | In order to overcome the shortcomings of the disturbing gravity interpolation with polynomials such as the B spline function, the method of the finite element interpolation is discussed in this paper. Based on the fundamentals of finite element interpolation, the disturbing gravity of the trajectory can be interpolated from that of the element vertices. Result indicates that, with this method the approximation of the disturbing gravity of trajectory can be completed fast and accurately and the application potential of this method is great. |
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| Keywords: | disturbing gravity finite element interpolation |
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