Место издания:68th International Astronautical Congress Adelaide, Australia
Первая страница:6305
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Аннотация:The paper considers a problem of 3U CubeSats swarm construction right after their separation from the bus launcher. During the separation of the satellites, some error in the ejection velocity is inevitable. It results in a slightly different orbital period of the satellites, so they will gradually fly apart along the orbit and the relative trajectories will be unbounded. Aerodynamic force acting on the satellite depends on its attitude. Therefore, it is possible to control relative motion without spending any propellant. Each satellite has information about relative motion of satellites inside certain communication area. Purpose of the control is to eliminate the relative drift between neighbour satellites. The paper develops such decentralized control algorithm. Effect of clustering - when the swarm is divided into several groups - is studied. This effect depends on size of the communication area, initial conditions and control parameters. Boundary values of these parameters in case of ten 3U CubeSats are investigated.