Fiber-to-the-telescope: MeerKAT, the South African precursor to Square Kilometre Telescope Array

被引：10

作者：

Gibbon, Tim B. ^{[1
]}

Kipnoo, Enoch K. Rotich ^{[1
]}

Gamatham, Romeo R. G. ^{[1
]}

Leitch, Andrew W. R. ^{[1
]}

Siebrits, Renier ^{[2
]}

Julie, Roufurd ^{[2
]}

Malan, Sias ^{[2
]}

Rust, Warnich ^{[2
]}

Kapp, Francois ^{[2
]}

Venkatasubramani, Thondikulam L. ^{[2
]}

Wallace, Bruce ^{[2
]}

Peens-Hough, Adriaan ^{[2
]}

Herselman, Paul ^{[2
]}

机构：

[1] NMMU, Dept Phys, Opt Fibre Res Unit, POB 77,000, ZA-6031 Port Elizabeth, South Africa

[2] Square Kilometer Array, ZA-7405 Pinelands, South Africa

来源：

JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS | 2015年 / 1卷 / 02期

关键词：

MeerKAT; Square Kilometre Array; telescope array; optical fiber;

D O I：

10.1117/1.JATIS.1.2.028001

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

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. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：5

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