Research On GEO Micro-nano Constellation Cooperative Mission Planning Technology

Space debris seriously threatens the flight safety of spacecraft in orbit.In order to realize the collaborative detection of space debris by micro-nano-satellites in GEO orbit,this paper conducts research on the simulation system design of GEO satellite collaborative task assignment and space debris orbit determination detection.The simulation results show that the improved multi-objective gray wolf algorithm can better meet the requirements of satellite task allocation than before the improvement,and the space orbit determination method based on the unscented Kalman filter algorithm can meet the requirements of satellite clusters in the space debris orbit determination simulation experiment.The collaborative planning research system requires that the satellite collaborative positioning simulation process be completed on the system simulation interface.(1)Since the cluster of micro-nano satellites has multi-target tracking capabilities when performing on-board missions cooperatively,how to make the satellites cooperate to efficiently complete the detection tasks and achieve the optimal overall detection and tracking effect of the constellation is a problem that needs to be solved in this paper.This paper proposes a scheduling method based on the multi-objective gray wolf algorithm,which takes into account both the income and cost of observation targets,and simplifies the corresponding distribution relationship between satellites and targets.Simulation results show the advantages of the improved algorithm and the effectiveness of the method.(2)In the face of space situational awareness needs,GEO micro-nano satellites need to detect space debris during orbit determination,and then regularly download the orbit determination data to improve my country’s space debris catalog information,and at the same time grasp the space orbit status in a timely manner.This paper proposes to use the precise orbit determination method based on the unscented Kalman filter to sense the space situation.The simulation results show that the precise orbit determination algorithm is within the acceptable range of orbit determination error,which can be used for the orbit determination of the satellite cluster collaborative planning research system.Partial support is provided.(3)A general simulation platform and a satellite cluster collaborative planning research system have been constructed.In this paper,a general simulation platform is used to carry out numerical simulation experiments on the distribution and tracking of micro-nano-satellite cluster cooperative detection tasks.The simulation content includes: micro-nano-satellite cooperative task allocation strategy analysis and allocation result display,and space debris orbit determination process simulation.The advantages of micro-nano-satellite co-location,space orbit determination detection capability and multi-target detection task allocation capability are analyzed.The correctness of the micro-nano-satellite cluster detection strategy is verified.Therefore,this paper has outstanding engineering application value and certain theoretical significance.