| 大气层外拦截器末段轨控方案分析 |
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| 引用本文： | 吴启星,刘世勇,张为华.大气层外拦截器末段轨控方案分析[J].航天控制,2007,25(3):17-22. |
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| 作者姓名： | 吴启星 刘世勇 张为华 |
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| 作者单位： | 1. 国防科技大学航天与材料工程学院,长沙,410073
2. 北京跟踪与通信技术研究所,北京,100094 |
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| 摘 要： | 针对采用固体推进剂动力系统的大气层外拦截器,从动力学角度分析了其末段飞行的轨控方案。首先推导了实现给定精度拦截时视线转率的控制范围,之后从提高被动测距可观性的角度给出了轨控发动机控制方式。根据系统延迟和采样频率对控制进行了修正,并讨论了发动机喷嘴开关对轨控推力大小的影响。最后进行了仿真验证。
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| 关 键 词： | 大气层外拦截器 轨控方案 固体推进剂 |
| 文章编号： | 1006-3242(2007)03-0017-06 |
| 修稿时间： | 2006年9月26日 |
The Analysis of the Divert Control Scheme for an Exo-atmospheric Interceptor in Its Terminal Course |
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| Wu Qixing,Liu Shiyong,Zhang Weihua.The Analysis of the Divert Control Scheme for an Exo-atmospheric Interceptor in Its Terminal Course[J].Aerospace Control,2007,25(3):17-22. |
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| Authors: | Wu Qixing Liu Shiyong Zhang Weihua |
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| Abstract: | The analysis of the divert control scheme from the dynamics of an exo-atmospheric interceptor in its terminal course with solid engine is put forward.First the control range of the line-of-sight rate to guarantee the desired precision is deduced,then the divert control scheme to improve the observability of the passive ranging is put forward.The control scheme is modified according to the system delay and sampling frequency,and the effects of the on-off of the nozzles on the magnitude of the thrust are analyzed.Finally the validation is made by simulations. |
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| Keywords: | Exo-atmospheric interceptor Divert control scheme Solid fuel |
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