Optimal reconfiguration of constellation using adaptive innova-tion driven multiobjective evolutiona

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Constellation reconfiguration is a critical issue to re-cover from the satellite failure, maintain the regular operation, and enhance the overall performance. The constellation recon-figuration problem faces the difficulties of high dimensionality of design variables and extremely large decision space due to the great and continuously growing constellation size. To solve such real-world problems that can be hardly solved by traditional al-gorithms, the evolutionary operators should be promoted with available domain knowledge to guide the algorithm to explore the promising regions of the trade space. An adaptive innovation-driven multi-objective evolutionary algorithm (MOEA-AI) employ-ing automated innovation (AI) and adaptive operator selection (AOS) is proposed to extract and apply domain knowledge. The available knowledge is extracted from the final or intermediate solution sets and integrated into an operator by the automated innovation mechanism. To prevent the overuse of knowledge-dependent operators, AOS provides top-level management between the knowledge-dependent operators and conventional evolutionary operators. It evaluates and selects operators ac-cording to their actual performance, which helps to identify use-ful operators from the candidate set. The efficacy of the MOEA-AI framework is demonstrated by the simulation of emergency missions. It was verified that the proposed algorithm can disco-ver a non-dominant solution set with better quality, more homo-geneous distribution, and better adaptation to practical situa-tions.
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