近地航天器强横向机动再入轨迹规划方法
By combining braking yaw with tilt angle offset, the reentry trajectory planning problem of near-Earth spacecraft under large initial lateral deviation was solved, realizing rapid trajectory planning and landing point avoidance for manned spacecraft return and enhancing lateral maneuverability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING INST OF SPACECRAFT SYST ENG
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, near-Earth spacecraft struggle to rapidly plan reentry trajectories to designated locations and avoid landing zones when faced with large initial lateral deviations. Their lateral maneuverability is weak, making it difficult to effectively control lateral deviations.
A reentry trajectory planning method for strong lateral maneuvering of near-Earth spacecraft is adopted. By combining braking yaw and tilt angle offset, the braking yaw angle and tilt angle offset are calculated. A funnel guidance law under lateral offset maneuvering is established, and the reentry trajectory parameters are solved iteratively to realize the allocation and control of lateral maneuvering.
It enables rapid trajectory planning and impact avoidance for near-Earth spacecraft under conditions of large initial lateral deviation, and is applicable to rapid reentry trajectory planning during manned spacecraft return, improving lateral maneuverability and meeting the constraints of the reentry process.
Smart Images
Figure CN120986695B_ABST