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A 4 GHz digital receiver using the Uniboard platform

dc.contributor.authorCOMORETTO, Giovanni
dc.contributor.authorRUSSO, Antonietta
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorQUERTIER, Benjamin
hal.structure.identifierFORMATION STELLAIRE 2012
dc.contributor.authorCAIS, Ph.
hal.structure.identifierFORMATION STELLAIRE 2012
dc.contributor.authorCAMINO, Pascal
dc.date.issued2012-09
dc.date.conference2012
dc.identifier.issn0164-9655
dc.description.abstractEnThe Uniboard is a general purpose board, developed as a part of the Radionet FP7 program, that hosts 8 Altera StratixIV FPGAs interconnected by high speed links. It can be used standalone or as a part of a more complex system. The Digital receiver application uses a single Uniboard to implement a flexible packetization of a wideband signal in the frequency domain. It accepts a 4 GHz (8 GS/s) input bandwidth and provides up to 64 output bands. The bandwidth and position of each output band can be independently adjusted. The input signal is first analyzed by a polyphase filterbank, that splits the input band into 32 sub-bands with a bandwidth of 190 MHz and a spacing of 128 MHz. The overlap among adjacent bands allows the positioning of the output bands without dead regions. This filterbank is followed by an array of digitally defined downconverters, each one composed of a mixer/LO and a variable decimation filter. The filter band can be adjusted in binary steps from 1 to 128 MHz. Using tap recirculation, the filter shape remains constant over this whole range, with about 60 dB of stopband rejection and 90% usable passband. The output bands are packetized according to the VDIF VLBI standard, over eight 10G Ethernet links. Further processing can be done either on board, or in a cluster of conventional PCs. In addition, high speed ADC are in-house developed (ASIC 65nm CMOS STmicroelectronics) to feed the Uniboard card with 8GS/s, 4GHz BW, 3bits samples.
dc.language.isoen
dc.publisherPrism Business Media
dc.source.titleMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, id. 84522L-84522L-10 (2012)
dc.title.enA 4 GHz digital receiver using the Uniboard platform
dc.typeCommunication dans un congrès
dc.identifier.doi10.1117/12.924809
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
bordeaux.journalMillimeter
bordeaux.pageid. 84522L-84522L-10
bordeaux.volume8452
bordeaux.countryFR
bordeaux.title.proceedingMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of the SPIE, Volume 8452, id. 84522L-84522L-10 (2012)
bordeaux.peerReviewedoui
hal.identifierhal-00752244
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00752244v1
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