Design of a multi-function high-speed digital baseband data acquisition system

doi:10.1088/1674-4527/21/10/248

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	Design of a multi-function high-speed digital baseband data acquisition system
	Pei, Xin 1,2,3,4; Li, Jian 1,3,4; Wang, Na 1,3; Ergesh, Toktonur 1,3,4; Duan, Xue-Feng 1,3,4; Ma, Jun 1,3,4; Chen, Mao-Zheng 1,3,4
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2021-11-01
卷号	21 期号:10 页码:12
关键词	instrumentation miscellaneous techniques miscellaneous site testing
ISSN号	1674-4527
DOI	10.1088/1674-4527/21/10/248
通讯作者	Wang, Na(na.wang@xao.ac.cn)
英文摘要	A multi-function digital baseband data acquisition system is designed for the sampling, distribution and recording of wide-band multi-channel astronomical signals. The system hires a SNAP2 board as a digital baseband converter to digitize, channelize and packetize the received signal. It can be configured dynamically from a single channel to eight channels with a maximum bandwidth of 4096 MHz. Eight parallel HASHPIPE instances run on four servers, each carrying two NVMe SSD cards, achieving a total continuous write rate of 8 GB s(-1). Data are recorded in the standard VDIF file format. The system is deployed on a 25-meter radio telescope to verify its functionality based on pulsar observations. Our results indicate that during the 30-minute observation period, the system achieved zero data loss at a data recording rate of 1 GB s(-1) on a single server. The system will serve as a verification platform for testing the functions of the QTT (QiTai radio Telescope) digital backend system. In addition, it can be used as a baseband/VLBI (Very Long Baseline Interferometry) recorder or D-F-engine of correlator/beamformer as well.
资助项目	National Natural Science Foundation of China (NSFC)[12073066] ; National Natural Science Foundation of China (NSFC)[61931002] ; National Natural Science Foundation of China (NSFC)[12073067] ; Youth Innovation Promotion Association of Chinese Academy of Sciences (CAS)[2020063] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from the Ministry of Finance of China (MOF)
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000723854500001
资助机构	National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association of Chinese Academy of Sciences (CAS) ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from the Ministry of Finance of China (MOF)
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/4374]
专题	脉冲星研究团组
通讯作者	Wang, Na
作者单位	1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.Xinjiang Key Lab Microwave Technol, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Pei, Xin,Li, Jian,Wang, Na,et al. Design of a multi-function high-speed digital baseband data acquisition system[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(10):12.
APA	Pei, Xin.,Li, Jian.,Wang, Na.,Ergesh, Toktonur.,Duan, Xue-Feng.,...&Chen, Mao-Zheng.(2021).Design of a multi-function high-speed digital baseband data acquisition system.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(10),12.
MLA	Pei, Xin,et al."Design of a multi-function high-speed digital baseband data acquisition system".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.10(2021):12.