- evn2024@mpifr.de
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Contribution
Speakers
- Dr. Gino TUCCARI
Primary authors
- Dr. Gino TUCCARI (INAF-IRA & MPIfR)
Co-authors
- Dr. Walter ALEF (MPIfR)
- Mr. Salvo BUTTACCIO (INAF-IRA)
- Mr. Sven DORNBUSCH (MPIfR)
- Mr. Armin FELKE (MPIfR)
- Ms. Asmita GUPTA (MPIFR)
- Dr. Helge ROTTMANN ()
- Dr. Alan ROY (MPIfR)
- Mr. Michael WUNDERLICH (MPIfR)
Files
Content
The development of the newer version of the VLBI digital front- and back-end system belonging to the DBBC systems’ family is under way as a work-package of the RadioBlocks Project. This instrument dedicated to increase the VLBI observation capabilities in terms of bandwidth and output data rate involves a number of relevant novelties ranging from the full 32 GHz digitized input band in a number of up to 8 RF/ IFs per system, to a fast recording system, and is including for the first time in a VLBI system the introduction of a hardware AI processor.
The DBBC4 can be implemented as a distributed system of elements to be positioned in different parts of the radio-telescope site, so as in a more traditional way in a single box. Distributed elements which can operate also as stand-alone are: DiFrEnd28 with full 28GHz bandwidth, DiFrEnd4T with 6 GHz bandwidth in the range 0-33 GHz, DiFrEndVGOS covering the entire VGOS range 2-14 GHz. This last one can also be used in conjunction with the DBBC3 to digitize the full VGOS band and replace any analogue frequency conversion. All the distributed elements can have backend functionality being able to produce channelized VDIF output packets to be recorded or sent through the correlator.
The progress of the DBBC4 development is reported together with a comprehensive description.