| 最小二乘法重建主动段弹道及其精度分析 |
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| 引用本文： | 王文灿,聂锋. 最小二乘法重建主动段弹道及其精度分析[J]. 弹道学报, 2007, 19(1): 24-26 |
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| 作者姓名： | 王文灿 聂锋 |
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| 作者单位： | 第二炮台兵工程学院,6系,西安,710025 |
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| 摘 要： | 以最小二乘法为基础,引入离散的标准正交多项式,使计算过程中不涉及矩阵求逆运算.利用基于标准弹道生成的"外测数据"拟合了主动段弹道,分析了拟合精度并讨论了拟合曲线阶数及分段数对拟合精度的影响.仿真结果表明,根据弹道特性进行适当分段能获得较高的拟合精度,可用于弹道重建.
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| 关 键 词： | 最小二乘法 弹道 拟合 |
| 文章编号： | 1004-499X(2007)01-0024-03 |
| 修稿时间： | 2006-03-28 |
Trajectory Rebuilding of Power Phase and Its Precision Analysis Based on LS Method |
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| WANG Wen-can,NIE Feng. Trajectory Rebuilding of Power Phase and Its Precision Analysis Based on LS Method[J]. Journal of Ballistics, 2007, 19(1): 24-26 |
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| Authors: | WANG Wen-can NIE Feng |
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| Abstract: | Based on the least-square method, the discrete standard orthogonal polynomial to build the fitting model was introduced to make the computation not be involved with solving inverse matrix. The trajectory of power phase of missile was fitted with tracking data created by standard trajectory. The fitting precision was analyzed, and influence of different fitting degrees and piecewise curves on fitting precision was discussed. The simulation results indicate that good fitting precision can be obtained by trajectory subsection according to ballistic characteristis, and the method can be used to rebuild trajectory. |
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| Keywords: | least square method trajectory fitting |
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