Real-time lossless compression of multibeam echosounder water column data
7th International Workshop on Marine Technology : MARTECH 2016. "Instrumentation viewpoint".
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Amblas Novellas, D., Portell, J., Rayo, X., Villafranca, A., García-Berro, E., & Canals, M. (2016). Real-time lossless compression of multibeam echosounder water column data. Instrumentation Viewpoint, 19 (17), 41-43. https://upcommons.upc.edu/handle/2117/99929
Multibeam echosounders can generate vast amounts of data when recording the complete water column, which poses logistic, economic and technical challenges. Lossy data compression can reduce data size up to one or two orders of magnitude, but often at the expense of significant image distortion. Lossless compression ratios tend to be modest and at a high computing cost. In this work we test a high-performance data compression algorithm, FAPEC, initially developed for Space data communications with low computing requirements. FAPEC provides good compression ratios and supports tailored pre-processing stages. Here we show its advantages over standard and high-end lossless compression solutions currently available, both in terms of ratios and speed
Multibeam bathymetry, Data compression, Water column data
R+D work on FAPEC is supported by the ESA Business Incubation Programme through Barcelona Activa, by the MINECO (Spanish Ministry of Economy) – FEDER through grants ESP2014-55996-C2-1-R, AYA2014-59084-P and MDM-2014-0369 of ICCUB (Unidad de Excelencia ‘María de Maeztu’), and by the AGAUR. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 658358 (D. Amblas). The authors acknowledge funding received from the Spanish RTD grant NUREIEV (CTM2013-44598-R) and from EC contract MIDAS (GA-603418). GRC Geociencies Marines is recognized by Generalitat de Catalunya as an excellence research group (ref. 2014 SGR 1068).
European Commission (658358)
External link: https://upcommons.upc.edu/handle/2117/99929
This record's URL: https://www.repository.cam.ac.uk/handle/1810/262642
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