Earth Observation Satellite Management

  • Authors:
  • E. Bensana;M. Lemaitre;G. Verfaillie

  • Affiliations:
  • ONERA, Centre de Toulouse, 12, avenue Idouard Belin, BP 4025, 31055 Toulouse cedex 4, France;ONERA, Centre de Toulouse, 12, avenue Idouard Belin, BP 4025, 31055 Toulouse cedex 4, France;ONERA, Centre de Toulouse, 12, avenue Idouard Belin, BP 4025, 31055 Toulouse cedex 4, France

  • Venue:
  • Constraints
  • Year:
  • 1999

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Abstract

Thedaily management of anearth observation satellite is a challenging combinatorial optimizationproblem. This problem can be roughly stated as follows: given(1) a set of candidate images for the next day, each one associatedwith a weight reflecting its importance, (2) a set of imperativeconstraints expressing physical limitations (no overlapping images,sufficient transition times, bounded instantaneous data flowand recording capacity), select a subset of candidates whichmeets all the constraints and maximizes the sum of the weightsof the selected candidates. It can be easily cast in variantsof the CSP, ILP or SAT frameworks. As a benchmark, we proposeto the CONSTRAINTS community a set of instances, which havebeen produced from a simulator of the order book of the futuresatellite SPOT5. The fact that only some of them have been optimallysolved should make them very attractive.