| SGKW轨道在线生成技术研究 |
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| 引用本文： | 胡正东,沈荟萍,张士峰,蔡洪.SGKW轨道在线生成技术研究[J].固体火箭技术,2009,32(6). |
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| 作者姓名： | 胡正东 沈荟萍 张士峰 蔡洪 |
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| 作者单位： | 1. 陆军武器装备体系研究国防科技重点实验室,北京,100012;国防科技大学,航天与材料工程学院,长沙,410073
2. 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目，国防科技大学优秀研究生创新资助项目 |
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| 摘 要： | 天基对地打击动能武器(SGKW)用于从太空对地面高价值战略目标进行快速、准确的打击.针对作战实时性要求,探讨了SGKW的轨道在线生成技术.首先,利用庞特里亚金极大值原理将时间最短打击轨道的最优控制问题转化为两点边值问题.由于约束条件中存在优化参数,一种基于"遗传算法+序列二次规划"的组合优化算法被用于求解伴随变量初值和再入点参数.为了提高轨道生成的速度,在大量离线优化数据的基础上建立了BP神经网络预测模型,其预测值通过序列二次规划算法稍加修正,即可满足相应任务的落点精度要求.仿真结果验证了上述方案的有效性.
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| 关 键 词： | 天基对地打击动能武器 轨道在线生成 庞特里亚金极大值原理 时间最短打击轨道 遗传算法 序列二次规划 BP神经网络 |
Research on technique of onboard trajectory generation for SGKW |
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| HU Zheng-dong,SHEN Hui-ping,ZHANG Shi-feng,CAI Hong.Research on technique of onboard trajectory generation for SGKW[J].Journal of Solid Rocket Technology,2009,32(6). |
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| Authors: | HU Zheng-dong SHEN Hui-ping ZHANG Shi-feng CAI Hong |
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| Institution: | HU Zheng-dong1,2,SHEN Hui-ping2,ZHANG Shi-feng2,CAI Hong2(1.National Key Laboratory of Sciece and Technology on Army Weapon Equipment System-of-systems Research,Beijing 100012,China,2.College of Aerospace and Material Engineering,National Universityof DefenceTechnology,Changsha 410073,China) |
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| Abstract: | The space-to-ground kinetic weapon(SGKW)is mainly used to strike the ground strategic target with high worth rapidly and exactly from space.According to the combat requirement of realtime capability,a method of onboard trajectory generation for SGKW was discussed.Firstly the optimal control problem of minimum-time strike trajectory was translated into two-point-boundary-value problem by using Pontryagin maximum principle.Because optimization parameters were involved in the constraint conditions,a combined o... |
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| Keywords: | space-to-ground kinetic weapon(SGKW) onboard trajectory generation Pontryagin maximum principle minimum-time strike trajectory genetic algorithm sequential quadratic programming BP neural network |
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