Spacecraft trajectory forecasting method based on induced ordered information aggregation operator

Different kinds of equipments are usually used to successively track the spacecraft during its flight. In order to realize the precise trajectory prediction of a spacecraft with overlapping arcs provided by multiple equipments, this paper proposes a trajectory prediction method based on induced ordered information aggregation operator, introduces the concept of induced ordered harmonic averaging operator, combines correlation index and IOWHA operator, determines weights according to the evaluation relative residual error of single location data and establish the combination forecasting method. The simulation results show that this method can increase the usage rate of tracking data from different equipments and decrease the indetermination of objects. The method can improve the forecasting precision of spacecraft trajectory.