Fibre-to-the-telescope: MeerKAT, the South African precursor to Square Kilometre Telescope Array (SKA)

被引：4

作者：

Gibbon, T. B. ^{[1
]}

Rotich, E. K. ^{[1
]}

Kourouma, H. Y. S. ^{[1
]}

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

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

Siebrits, R. ^{[2
]}

Julie, R. ^{[2
]}

Malan, S. ^{[2
]}

Rust, W. ^{[2
]}

Kapp, F. ^{[2
]}

Venkatasubramani, T. L. ^{[2
]}

Wallace, B. ^{[2
]}

Peens-Hough, A. ^{[2
]}

Herselman, P. ^{[2
]}

机构：

[1] NMMU, Dept Phys, Eastern Cape, South Africa

[2] MeerKAT Engn Off, Square Kilometre Array South Africa Org, Cape Town, South Africa

来源：

OPTICAL METRO NETWORKS AND SHORT-HAUL SYSTEMS VI | 2014年 / 9008卷

基金：

新加坡国家研究基金会;

关键词：

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

D O I：

10.1117/12.2049434

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Scientific curiosity to probe the nature of the universe is pushing boundaries of big data transport and computing for radio telescopes. MeerKAT, the South African precursor to Square Kilometre Array (SKA), has 64 antennae separated by up to 12 km. By 2018, each antenna will stream up to 160 Gbps over optical fibre to a central computing engine. The antennae 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.

引用

页数：6

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