E-Vlbi Using a Software Correlator

  • N. Kruithof
Part of the Signals and Communication Technology book series (SCT)


Very long baseline interferometry (VLBI) is a technique in astronomy where several distant radio telescopes observe the same source and the received signals are recorded and later correlated to produce an image with a larger resolution. An e-VLBI experiment is a VLBI experiment where the data are transferred directly over the Internet and correlated in real time.

The primary task of JIVE is the correlation of data from the EVN telescopes [2] all around Europe. A special purpose-built hardware correlator is used for data processing. We are currently investigating the capabilities of a next-generation software correlator using Grid processing power. In this chapter we describe the design of this software correlator.


Output Node Time Slice Very Long Baseline Interferometry Control Message Data Node 
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • N. Kruithof
    • 1
  1. 1.Joint Institute for VLBI in Europe (JIVE)7990 AA DwingelooThe Netherlands

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