Research Of On-Orbit Autonomous Mission Planning For Formation Satellites

With the expansion of space task requirements and the development of space technology,small satellite formation has become a research hotspot in the field of aerospace.Formation satellites are widely used,and it is important to make use of specific formation configuration for earth observation.In order to improve the real-time performance of satellite formation's mission planning and improve the overall performance of formation satellites,it is necessary to study the autonomous mission planning of formation satellites on orbit.In this paper,on the basis of the characteristics of earth observation by specific formation configurations,I studied the autonomous mission planning of formation satellites.The framework of autonomous mission planning of formation satellites on-orbit is given.Firstly,based on the satellite formation configuration,this paper analyzes the characteristics of earth observation by satellites formation and illustrates the process of earth observation.It gives the framework of formation satellites on orbit autonomous mission planning.The autonomous mission planning framework includes a preprocessing module and a mission planning module.The clustering constraints of dense tasks are analyzed.The clustering model of mixed tasks with relay tasks observed by serial formation satellites and the clustering model of mixed tasks with stereo tasks observed by Pendulum formation satellites are presented.And a priority based clique partition algorithm is designed to solve models.The task clustering module of formation satellites is a sub-module of the preprocessing module of formation satellites on-orbit autonomous mission planning framework.Detailed design of the framework of autonomous mission planning for formation satellites is presented.Based on the clustering of intensive tasks observed by formation satellites,I study the on orbit autonomous mission planning of serial formation satellites and Pendulum formation satellites.Firstly,the constraint model of autonomous mission planning of serial formation satellites is described.A multi-objective function for autonomous mission planning of serial formation satellites is designed.The mission planning model of serial formation satellites is built.An improved genetic algorithm is designed to solve the mission planning model.Secondly,the constraint model of autonomous mission planning of Pendulum formation satellites is described.A single objective function for autonomous mission planning of Pendulum formation satellites is designed,and the mission planning model of Pendulum formation satellites is built.A double-scale transform discrete particle swarm optimization is designed to solve the model.Finally,I designed simulation experiments for the above two mission planning algorithms to verify the effectiveness of the algorithms.