DBBC3 Towards the BRAND EVN Receiver
Paper in proceedings, 2019

The DBBC3 is a flexible VLBI backend and environment that supports a wide range of observational needs via a suite of FPGA firmware types. The hardware can sample up to eight 4 GHz-wide baseband signals and convert to digital streams over multiple 10GE links on fibre. The development team has an ongoing development programme that has enhanced existing modes and introduced new desired modes as user requirements evolve. Three dierent firmware types for observing have been implemented which will be briefly summarised: Direct Sampling Conversion (DSC), arbitrary selection of bands (OCT), Digital Down Conversion (DDC). These modes cover all the requirements of astronomical, VGOS and legacy geodetic VLBI of the present, but also of the near future. At the same time the DBBC3 is an important platform for additional new modes to be implemented for the BRAND receiver. This paper describes the use of the DBBC3 for the receiver development, pointing out which element in the current DBBC3 structure will be part of the BRAND receiver in order to simplify its introduction into the existing VLBI environment at telescopes with a DBBC3 backend.

VLBI

Digital Receiver

VLBI Backends

Author

Gino Tuccari

MPIfR

Walter Alef

MPIfR

Sven Dornbusch

MPIfR

Rüdiger Haas

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Space Geodesy and Geodynamics

Karl-Åke Johansson

Chalmers, Space, Earth and Environment, Onsala Space Observatory, Electronics Laboratory

Laura La Porta

MPIfR

Helge Rottmann

MPIfR

Alan L Roy

MPIfR

Jan Wagner

MPIfR

Michael Wunderlich

MPIfR

Proceedings of the 24th European VLBI Group for Geodesy and Astrometry Working Meeting

27-30

24th European VLBI Group for Geodesy and Astrometry Working Meeting
Las Palmas, Spain,

Driving Forces

Sustainable development

Roots

Basic sciences

Infrastructure

Onsala Space Observatory

Subject Categories

Earth and Related Environmental Sciences

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.7419/162.08.2019

More information

Latest update

12/22/2019