Research on Collocation Situation Analysis and Control Optimization of the BeiDou GEO Satellites

Aiming at the problem of collocation of BeiDou GEO satellite with other satellites under complex constraints, a collocation safety situation model is designed based on orbital interactive data processing and collocation safety factor analysis. An optimized control algorithm based on coupling quantity estimation is proposed to solve the influence of orbit maintenance control on collocation safety trend. The simulation results show that the optimization control algorithm can reduce the influence of orbit maintenance control on the collocation safety factors by an order of magnitude. Combined with the safety situation model, the development trend of co-orbit safety factors can be effectively predicted.