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满足视场约束的交会对接-V-bar撤离控制算法
引用本文:梁立波,罗亚中,李海阳,唐国金.满足视场约束的交会对接-V-bar撤离控制算法[J].科技导报(北京),2008,26(20).
作者姓名:梁立波  罗亚中  李海阳  唐国金
作者单位:国防科技大学航天与材料工程学院
摘    要:研究了考虑测量视场和撤离安全距离约束的-V-bar撤离制导控制算法.本文建立了视场角约束分析模型,基于Clohessy-Wiltshire二脉冲交会算法.引入了脉冲加权因子.给出了考虑视场角和安全距离约束的多脉冲Clohessy-Wiltshire撤离制导控制算法.本文分析了脉冲加权因子对脉冲次数、机动时间和燃料消耗的影响.并通过一个算例验证了算法的有效性.仿真结果表明.该制导算法能很好地满足约束;机动脉冲次数和机动时间都随着加权因子的增大而减小.而总速度增量与加权因子之间不具有明显关系.

关 键 词:交会对接  -V-bar撤离  视场角  安全距离  Clohessy-Wiltshire制导控制算法

Field-of-view Constrained Guidance Algorithm for-V-bar Departure
LIANG Libo,LUO Yazhong,LI Haiyang,TANG Guojin.Field-of-view Constrained Guidance Algorithm for-V-bar Departure[J].Science & Technology Review,2008,26(20).
Authors:LIANG Libo  LUO Yazhong  LI Haiyang  TANG Guojin
Abstract:This paper investigates a guidance algorithm for-V-bar departure, with consideration of the constraints of field of view and safety distance.The constraint model is first built.By introducing a weighting factor of impulse, the multi-impulse Clohessy-Wiltshire guidance algorithm for the field-of-view angle and safety distance constraints is then designed based on the two-impulse Clohessy-Wiltshire rendezvous algorithm.The influence of the weighting factor of impulse on the number of impulses, maneuvering time and propellant consumption is analyzed.The effectiveness of the proposed algorithm is evaluated by an example.The simulation results show that the proposed guidance algorithm can well satisfy the conditions for the constraints.The number of impulses and the maneuvering time decrease as the weighting factor increases, while the relationship between the total velocity increment and the weighting factor is not apparent.
Keywords:rendezvous and departure  -V-bar departure  field-of-view angle  safety distance  Clohessy-Wiltshire rendezvous algorithm
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