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Towards a Concept Design for a LOFAR

Published online by Cambridge University Press:  26 May 2016

Jaap D. Bregman
Jaap D. Bregman*
Affiliation:
Netherlands Foundation for Research in Astronomy, AA Dwingeloo, The Netherlands

Abstract

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The LOw Frequency ARray is a Digital Software Radio Telescope under study by the NFRA and the NRL. A scaleable architecture is proposed for the antenna stations of an aperture synthesis array operating in the 10 — 160 MHz frequency band. The use of advanced phased array technology with digital beamforming results in a multi-beam capability of up to 64 beams, which cover together about a steradian on the sky, and can be placed such that all relevant science objects are covered simultaneously. Based on the fast expansion of high performance processing technology, it is just after 2003 that signal and data processing will no longer dominate the cost of LOFAR in producing a confusion limited sky survey at the mJy level.

Type
Part 9: Instrumentation and Techniques
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 484 - 485
Copyright
Copyright © Astronomical Society of the Pacific 2002 

References

Kassim, N. E., & Erickson, W. C. 1998 in Proc. of SPIE, 3357, 740–754 Google Scholar
Bregman, J. D. 1999 in Proc. of NFRA SKA Symposium: Technologies for Large Antenna Arrays, Dwingeloo Google Scholar
Bregman, J. D., Tan, G. H., Cazemier, W., Craeye, C. 2000 in Proc. of IEEE International Symposium on Antennas and Propagation, Salt-Lake City Google Scholar