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Safe Retreat Trajectory Design for Rendezvous behind a Keep-out-Zone

XIE Yongchun 1,2 ,CHEN Changqing 1,2   

  1. 1.Beijing Institute of Control Engineering,Beijing 100190,China;
    2.National Laboratory of Space Intelligent Control,Beijing 100190,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-26 Published:2009-06-26

Abstract: A design method of safe retreat trajectory for rendezvous behind a keep-out-zone is investigated. Two safe retreat modes are provided for a rectangular keep-out-zone around the target spacecraft, and characteristics of those possible points intersectant to the keep-out zone are analyzed. Two theorems on sufficient and necessary conditions about safety of the free-flying trajectories of two retreat modes are presented and proved. Finally a retreat scheme is designed based on practical engineering, and two simulation examples are given to demonstrate validity of the retreat method and feasibility of the retreat scheme.

Key words: rendezvous and docking, retreat , trajectory safety , keep-out-zone

CLC Number: 

  • V526