Authors P.O. Skobelev, V.K. Skirmunt, E.V. Simonova, A.A. Zhilyaev, V.S. Travin
Month, Year 10, 2015 @en
Index UDC 528.8
Abstract The problem of planning for target application of a group of Earth remote sensing satellites is considered. The criterion for schedule efficiency assessment is timely delivery of images to cus-omers and their resolution. The schedule must comply with the following constraints: visibility between satellites, observation areas and data receiving points; storage capacity of the memory unit; coordination of operations on shooting, storing, transmitting and receiving data. The multi-agent approach to planning is used, where the sought schedule is built as dynamic balancing interests of satellites, data receiving points and observation area agents. Dynamically occurring events are taken into account when planning, including introduction of a new task or change of task options, failure of a satellite or means of communication. Classes of agents and protocols of their interaction are described. Formation of the sought schedule is divided into two stages. At the first stage, agents form the initial feasible schedule using greedy strategy, at the second stage they try to improve the current schedule by building chain permutations of operations. A list of conflict situations, which are solved in the process of planning, is considered. The developed prototype of the planning system for target application of a group of satellites is described. The results of the prototype performance with a test data set are presented. Advantages of the multi-agent approach to management of a group of Earth remote sensing satellites are proved.

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Keywords Multi-agent technology; group of satellites; Earth observation; target application; planning and scheduling; adaptability.
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