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Design Method of Collision Avoidance Impulsive Maneuvers in the Final Approaching stage of Rendezvous and Docking Based on the rectangular Keep-Out-Zone

Based on the Hill equation, a general design method of collision avoidance impulsive maneuver in the final approaching stage of R-bar rendezvous and docking is proposed. If the passive safety mode with a very low approaching speed is used to approach the target spacecraft, which will lead to a long flight time. Therefore, the active safety mode is often adopted to approach the target spacecraft in engineering application, so it is necessary to present a design method of an emergency collision avoidance impulsive maneuvers. This thesis makes researches on designing a general method of collision avoidance impulsive maneuvers on the basis of cuboid Keep-Out-Zone, considering the impact of the size of the target and the attitude error. The collision avoidance impulsive maneuvers scheme proposed in this paper can ensure safety under the worst conditions, which provides the foundation in theory for the future rendezvous and docking.