Propagation channel assessment for GEO feeder links
Évaluation des conditions de propagation pour les liens GEO-sol
Résumé
Seen as the essential infrastructure supporting future high-throughput space data highways, Optical Feeder Links are still confronted with the need to manage atmospheric disruptions. Complex correction methods, including adaptive optics (AO), coding, interleaving and handover will be necessary to ensure the high link availability expected from a data providing service. Each of these correction methods might reap the benefits of an accurate propagation channel assessment either for real time optimization to feed control laws of the AO for short-term optimization in a minute timescale and for longer-term, typically dozen of minutes to few hours, to supervise the handover process. We present here the principal characteristics of ONERA’s optical ground station FEELINGS data pipeline and draws perspectives on its exploitation for link availability prediction.
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