Multi-objective Optimization for Task Assignment of Satellite Swarm with Configuration Design

Abstract

The satellite swarm encirclement task is not only constrained by the task time, task consumption and other constraints, but also constrained by the security of the sub satellite in swarm. Therefore, a reasonable assignment plan must be carried out to ensure the smooth progress of the task. In this paper, a configuration design method of capture location considering the security and uniformity of satellite swarm is proposed, which includes a bounded spherical uniform envelope and a repulsion field function model. Then, taking the task execution time, orbit change energy consumption and spacecraft task efficiency as optimization objectives, the multi-objective satellite swarm task assignment problem is studied. Finally, simulation experiments are carried out for the capture scene under the conditions of coplanar and nonplanar orbits. Experiments show that the task assignment method can ensure that all sub satellites can effectively capture non-cooperative target at the same time, meet the adaptability of satellites with different task functions to the location, and optimize the overall energy consumption. In addition, the distribution of satellites around non-cooperative target has good uniformity and security.