A Combinatorial Optimal Control Problem for Spacecraft Formation Reconfiguration

Details A Combinatorial Optimal Control Problem for Spacecraft Formation Reconfiguration A Combinatorial Optimal Control Problem for Spacecraft Formation Reconfiguration

2007-02-24

arxiv.org/abs/math/0702738v1

Mathematics

Optimization and Control

8 pages, 3 figures

Scientific paper

We consider a spacecraft formation reconfiguration problem in the case of identical spacecraft. This introduces in the optimal reconfiguration problem a permutational degree of freedom, in addition to the choice of individual spacecraft trajectories. We approach this using a coupled combinatorial and continuous optimization framework, in which the inner loop consists of computing the costs associated with a particular assignment by using a geometrically exact and numerically efficient discrete optimal control method based on Lie group variational integrators. In the outer optimization loop, combinatorial techniques are used to determine the optimal assignments based on the costs computed in the inner loop. The proposed method is demonstrated on the optimal reconfiguration problem for 5 identical spacecraft to go from an inline configuration to one equally spaced on a circle.

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