AMiBA WIDEBAND ANALOG CORRELATOR

被引:17
|
作者
Li, Chao-Te [1 ]
Kubo, Derek Y. [1 ]
Wilson, Warwick [2 ]
Lin, Kai-Yang [1 ,3 ]
Chen, Ming-Tang [1 ]
Ho, P. T. P. [1 ,4 ]
Chen, Chung-Cheng [1 ]
Han, Chih-Chiang [1 ]
Oshiro, Peter [1 ]
Martin-Cocher, Pierre [1 ]
Chang, Chia-Hao [1 ]
Chang, Shu-Hao [1 ]
Altamirano, Pablo [1 ]
Jiang, Homin [1 ]
Chiueh, Tzi-Dar [3 ]
Lien, Chun-Hsien [3 ]
Wang, Huei [3 ]
Wei, Ray-Ming [3 ]
Yang, Chia-Hsiang [3 ]
Peterson, Jeffrey B. [5 ]
Chang, Su-Wei [1 ]
Huang, Yau-De [1 ]
Hwang, Yuh-Jing [1 ]
Kesteven, Michael [2 ]
Koch, Patrick [1 ]
Liu, Guo-Chin [1 ,6 ]
Nishioka, Hiroaki [1 ]
Umetsu, Keiichi [1 ]
Wei, Tashun [1 ]
Wu, Jiun-Huei Proty [3 ]
机构
[1] Acad Sinica, Inst Astron & Astrophys, Taipei 106, Taiwan
[2] Australia Telescope Natl Facil, Epping, NSW 1710, Australia
[3] Natl Taiwan Univ, Taipei 106, Taiwan
[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[6] Tamkang Univ, Tamsui 25137, Taipei County, Taiwan
来源
ASTROPHYSICAL JOURNAL | 2010年 / 716卷 / 01期
关键词
cosmic background radiation; instrumentation: interferometers; telescopes; ARRAY; COSMOLOGY; SYSTEM;
D O I
10.1088/0004-637X/716/1/746
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A wideband analog correlator has been constructed for the Yuan-Tseh Lee Array for Microwave Background Anisotropy. Lag correlators using analog multipliers provide large bandwidth and moderate frequency resolution. Broadband intermediate frequency distribution, back-end signal processing, and control are described. Operating conditions for optimum sensitivity and linearity are discussed. From observations, a large effective bandwidth of around 10 GHz has been shown to provide sufficient sensitivity for detecting cosmic microwave background variations.
引用
收藏
页码:746 / 757
页数:12
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