The Payload Data Handling and Telemetry Systems of Gaia
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The Payload Data Handling System (PDHS) of Gaia is a technological challenge, since it will have to process a huge amount of data with limited resources. Its main tasks include the optimal codification of science data, its packetisation and its compression, before being stored on-board ready to be transmitted. Here we describe a set of proposals for its design, as well as some simulators developed to optimise and test these proposals.
4 pages, 7 figures, to appear in the Proceedings of the Symposium "The Three-dimensional Universe with Gaia", 4-7 October 2004, Observatoire de Paris-Meudon, France, eds: C. Turon, K.S. O'Flaherty, M.A.C. Perryman (ESA SP-576)
4 pages, 7 figures, to appear in the Proceedings of the Symposium "The Three-dimensional Universe with Gaia", 4-7 October 2004, Observatoire de Paris-Meudon, France, eds: C. Turon, K.S. O'Flaherty, M.A.C. Perryman (ESA SP-576)