摘要
首先,在视线坐标系下建立了系统相对运动状态方程,将人工势函数制导方法应用于航天器的非合作自主交会对接任务和动态障碍物躲避问题。其次,利用Lyapunov稳定性理论分析证明了在该制导方法控制下系统的稳定性,并且研究讨论了两种不同情形下的动态障碍物躲避效果,分析了人工势函数制导方法的应用能力。最后,用精确的数学模型进行了数值仿真,验证了制导方法应用于所研究问题的正确性和有效性。
Firstly, the relative motion state equations were described in line of sight coordinate frame. And the artificial potential function guidance was used for autonomous rendezvous and docking with a non cooperative target spacecraft and dynamic obstacle avoidance missions. Then, mission of autonomous rendezvous and docking with the non cooperative target was accomplished and dynamic obstacle avoidance was studied by potential function guidance. Secondly, the stability of the method was analyzed and proved by Lyapunov theory, and the effects of two different dynamic obstacle avoidances were studied and discussed. Meanwhile, the capability of potential function guidance was analyzed. Finally, the numerical simulation results based on a precise mathematic model demonstrate the validity and effectiveness of the proposed guidance method.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2010年第6期39-48,共10页
Chinese Space Science and Technology
关键词
自主交会对接
人工势函数制导
非合作目标
动态障碍物躲避
航天器
Autonomous rendezvous and docking Artificial potential function guidance Non-cooperative target Dynamic obstacle avoidance Spacecraft
