Orbit slot allocation in earth observation constellations
Résumé
In the context of Earth observation constellations, we consider the problem of allocating orbit slots (space and time windows) to clients requesting some ownership of orbit portions overflying desired regions on Earth. This problem arises prior to operational scheduling of task, in constellations where users can directly communicate with the satellites using their own ground stations, delegating the scheduling task in these exclusive slots, to the clients themselves. As to perform the allocation, we propose a two-level optimization approach, where the optimization process (led by either utilitarian or fair criterion) explores the solution space using a feasibility checker based on a constraint solver. We experimentally evaluate and analyze their performance on randomly generated order books and real constellation configurations.
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Licence : CC BY NC - Paternité - Pas d'utilisation commerciale
Licence : CC BY NC - Paternité - Pas d'utilisation commerciale