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Journal of Astronomical Telescopes, Instruments, and Systems

Fiber-to-the-telescope: MeerKAT, the South African precursor to Square Kilometre Telescope Array
Author(s): Tim B. Gibbon; Enoch K. Rotich Kipnoo; Romeo R. G. Gamatham; Andrew W. R. Leitch; Renier Siebrits; Roufurd Julie; Sias Malan; Warnich Rust; Francois Kapp; Thondikulam L. Venkatasubramani; Bruce Wallace; Adriaan Peens-Hough; Paul Herselman
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Paper Abstract

Scientific curiosity to probe the nature of the universe is pushing the boundaries of big data transport and computing for radio telescopes. MeerKAT, the South African precursor to Square Kilometre Array, has 64 antennas separated by up to 12 km. By 2018, each antenna will stream up to 160 Gbps over optical fiber to a central computing engine. The antenna digitizers require highly accurate clock signals distributed with high stability. This paper outlines requirements and key design aspects of the MeerKAT network with timing reference overlay. Fieldwork results are presented into the impact of birefringence and polarization fluctuations on clock stability.

Paper Details

Date Published: 6 April 2015
PDF: 5 pages
J. Ast. Inst. Sys. 1(2) 028001 doi: 10.1117/1.JATIS.1.2.028001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 1, Issue 2
Show Author Affiliations
Tim B. Gibbon, Nelson Mandela Metropolitan Univ. (South Africa)
Enoch K. Rotich Kipnoo, Nelson Mandela Metropolitan Univ. (South Africa)
Romeo R. G. Gamatham, Nelson Mandela Metropolitan Univ. (South Africa)
Andrew W. R. Leitch, Nelson Mandela Metropolitan Univ. (South Africa)
Renier Siebrits, SKA South Africa (South Africa)
Roufurd Julie, SKA South Africa (South Africa)
Sias Malan, SKA South Africa (South Africa)
Warnich Rust, SKA South Africa (South Africa)
Francois Kapp, SKA South Africa (South Africa)
Thondikulam L. Venkatasubramani, SKA South Africa (South Africa)
Bruce Wallace, SKA South Africa (South Africa)
Adriaan Peens-Hough, SKA South Africa (South Africa)
Paul Herselman, SKA South Africa (South Africa)


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