Towards a Concept Design for a LOFAR

Author:

D. Bregman Jaap

Abstract

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.

Publisher

Cambridge University Press (CUP)

Reference3 articles.

1. Bregman J. D. , Tan G. H. , Cazemier W. , Craeye C. 2000 in Proc. of IEEE International Symposium on Antennas and Propagation, Salt-Lake City

2. Bregman J. D. 1999 in Proc. of NFRA SKA Symposium: Technologies for Large Antenna Arrays, Dwingeloo

3. Meter- and decameter-wavelength array for astrophysics and solar radar

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