| 引用本文: | 常晓华,蒋鲁佳,杨锐,等.垂线偏差对弹道落点精度的影响分析.[J].国防科技大学学报,2017,39(4):1-5.[点击复制] |
| CHANG Xiaohua,JIANG Lujia,YANG Rui,et al.Analysis on effects of vertical deflection for trajectory impact accuracy[J].Journal of National University of Defense Technology,2017,39(4):1-5[点击复制] |
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| 垂线偏差对弹道落点精度的影响分析 |
| 常晓华, 蒋鲁佳, 杨锐, 张婕, 丰海 |
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(北京宇航系统工程研究所， 北京 100076)
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| 摘要: |
| 针对垂线偏差对弹道落点精度的影响，结合弹道飞行器质点动力学模型，系统分析了垂线偏差对发射坐标系、初始参数、飞行过程中受力、程序角控制基准、地心坐标系弹道参数等的影响机理，并建立了相应的数学模型。进一步，基于给定的弹道落点偏差计算方法，以某飞行弹道为例，定量给出了不同发射点大地纬度、不同发射方位角下垂线偏差引起的落点偏差。本文研究工作对提高弹道飞行器落点精度具有重要参考意义。 |
| 关键词: 垂线偏差 飞行弹道 落点精度 |
| DOI：10.11887/j.cn.201704001 |
| 投稿日期：2016-07-27 |
| 基金项目:国家部委基金资助项目(613222) |
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| Analysis on effects of vertical deflection for trajectory impact accuracy |
| CHANG Xiaohua, JIANG Lujia, YANG Rui, ZHANG Jie, FENG Hai |
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(Beijing Institute of Astronautical System Engineering, Beijing 100076, China)
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| Abstract: |
| In view of the effects of the vertical deflection on trajectory impact accuracy, the influence mechanisms of the vertical deflection on the launching coordinate system, the initial parameter, the force during the flight, the control criteria of the program angle, and the trajectory parameter under the geocentric coordinate system were analyzed respectively by combining with the particle dynamics model of the ballistic vehicle. Then, the mathematical models of the effects of the vertical deflection were established. Furthermore, based on the given computing method of trajectory impact deflection and taking a flight trajectory as example, the impact errors under different geodetic latitude of launch point and different launch azimuth angle were presented quantitatively. The research is of great reference value in the aspect of the improvement of the impact accuracy for the ballistic vehicle. |
| Keywords: vertical deflection trajectory impact accuracy |
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