Review on spacecraft autonomous decision-making and planning for orbital threat avoidance

The accumulation of space debris, the deployment of large-scale satellite constellations, and intensified spatial competition have led to a rapid increase in the number of orbital threats, seriously threatening the safety and stability of spacecraft. Research into spacecraft autonomous decision-making and planning for orbital threats is crucial to securing China's space assets. Confronted with complex scenarios characterized by high dynamics, time-varying constraints, incomplete or imperfect information, and multiple concurrent threats, this research faces several practical challenges. This review examines the research status of spacecraft autonomous decision-making and planning, discusses key technologies including problem modeling, decision-making, maneuver planning, intelligent decision-making and planning, and concludes with suggestions for future research.