| Téléchargement | - Voir la version finale : An FPGA based computing platform for adaptive optics control (PDF, 396 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1051/ao4elt/201007006 |
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| Auteur | Rechercher : Hovey, G. J.1; Rechercher : Conan, R.; Rechercher : Gamache, F.; Rechercher : Herriot, G.1; Rechercher : Ljusic, Z.1; Rechercher : Quinn, D.; Rechercher : Smith, M.1; Rechercher : Veran, J. P.; Rechercher : Zhang, H.1 |
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| Affiliation | - Conseil national de recherches du Canada. Herzberg en astronomie et en astrophysique
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| Format | Texte, Article |
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| Conférence | 1st AO4ELT conference - Adaptive Optics for Extremely Large Telescopes, June 22-26, 2009, Paris, France |
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| Résumé | We outline a concept design for an FPGA based real-time adaptive optics controller that meets the requirements of the Thirty Meter Telescope (TMT) first light Narrow Field Infrared Adaptive Optics system (NFIRAOS). The data and processing rates for NFIRAOS are very demanding. It has pixel input rates of about 5 GB/s and processing requirements of order several hundred GMACs. The hardware proposed is programmable and flexible, and can be used in other AO systems. It is based on a custom FPGA compute blade housed with COTS interface and computer boards in an ATCA chassis. The system accepts data from eight wave front sensors at 10 Gbps each via thirty-two serial front panel data ports (sFPDPs). Nine FPGA blades provide about 2.7 TMAC/s of processing power and are used to perform pixel processing, tomography and deformable mirror fitting. Two general-purpose computer boards are used to perform background processing and control, each with three Intel L7400 dual core processors. The system is also capable of storing 90 TB of telemetry data at rate of 3.5 GB/s. |
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| Date de publication | 2010-02-24 |
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| Maison d’édition | EDP Sciences |
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| Emplacement | Les Ulis, France |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | e4644199-fd03-4b14-9956-d540df2ce917 |
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| Enregistrement créé | 2020-06-24 |
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| Enregistrement modifié | 2020-06-25 |
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