| 气动辅助空间交会最优轨道设计与闭环导引律 |
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| 引用本文： | 陈洪波,杨涤.气动辅助空间交会最优轨道设计与闭环导引律[J].航天控制,2006,24(6):17-22. |
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| 作者姓名： | 陈洪波 杨涤 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 给出了同平面HEO-LEO实现空间交会的必要条件;研究了基于气动辅助轨道转移技术实现同平面HEO-LEO的空间交会方案,通过设计一条标准的同平面HEO-LEO气动辅助轨道转移的最优轨迹,得到了轨道转移飞行器(OTV)与目标实现交会必须满足的标准相角;最后对大气飞行段设计了非线性最优闭环导引律,通过引入Lyapunov最陡下降函数,对函数中相应参数进行适当调整,使应用闭环导引律得到的大气内飞行轨迹与最优轨迹充分接近,仿真结果表明该气动辅助空间交会方法正确、可行。
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| 关 键 词： | 气动力 空间交会 最优轨迹 导引律 |
| 文章编号： | 1006-3242(2006)06-0017-06 |
| 修稿时间： | 2006年1月6日 |
Optimal Trajectories Design and Closed-loop Guidance Law Study for Aero-assisted Space Rendezvous |
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| Chen Hongbo,Yang Di.Optimal Trajectories Design and Closed-loop Guidance Law Study for Aero-assisted Space Rendezvous[J].Aerospace Control,2006,24(6):17-22. |
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| Authors: | Chen Hongbo Yang Di |
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| Abstract: | Two necessary conditions for coplanar HEO-LEO space rendezvous are proposed.A method based on aero-assisted orbital transfer to realize coplanar HEO-LEO space rendezvous is studied,in which a standard optimal trajectories of coplanar HEO-LEO aero-assisted orbital transfer is designed firstly and the standard phase angle is presented for coplanar HEO-LEO aero-assisted space rendezvous.Finally,a nonlinear optimal closed-loop guidance law for atmospheric flight segment is studied,in which Lyapunov steepest descent function is presented firstly and atmospheric flight trajectory for closed-loop guidance law is made enough approximately with optimal trajectory by adjusting corresponding parameters for the descent function.Numerical results indicate that the space rendezvous method is feasible. |
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| Keywords: | Aerodynamics force Space rendezvous Optimal trajectory Guidance law |
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