QTT Ultra-wideband Signal Acquisition and Baseband Data Recording System Design Based on the RFSoC Platform
文献类型：期刊论文
| 作者 | Pei, Xin1,2 ; Li, Jian1,2; Duan, Xuefeng1,2; Zhang, Hailong2
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
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| 出版日期 | 2023-07-01 |
| 卷号 | 135期号:1049页码:11 |
| ISSN号 | 0004-6280 |
| DOI | 10.1088/1538-3873/ace12d |
| 通讯作者 | Pei, Xin(peixin@xao.ac.cn) |
| 英文摘要 | The 110 m QiTai radio Telescope (QTT) will be equipped with multiple Ultra-WideBand (UWB) receivers in the primary and Gregory focus to achieve continuous frequency coverage from 270 MHz to 115 GHz, which poses great challenges to signal acquisition, transmission, and real-time processing. Aiming at 10 GHz and above full-bandwidth acquisition and multi-scientific processing for the QTT UWB signals, an experimental system with high-speed signal acquisition, 100 Gb network multi-path distribution, and fast recording is designed by using advanced direct RF-sampling technology and heterogeneous architecture. The system employs a ZCU111 board to digitize dual-polarization signals with a sampling rate of 4.096 GigaSamples-Per-Second and 12-bit quantization. The collected wideband signals are channelized into 2048 chunks, which are then assembled into 16 sets of digital narrow basebands with 128 MHz bandwidth and transmitted to the processing servers through two 100 Gb ports. A HASPIPE pipeline, UWB_HASHPIPE is designed to receive and store multiple subbands in parallel. Data distribution links can be flexibly configured based on IP addresses and port numbers. The system is verified by pulsar observation experiments on the Nanshan 26 m telescope. 512 MHz bandwidth is selected from the collected L-band receiver signals and recorded in VDIF file format with 8 parallel instances. The test results show that the data integrity is excellent, and the signal-to-noise ratio of the band-merged pulsar profile is stronger than single subband data. This paper provides a high-performance and flexible solution for the design of versatile UWB backends. Meanwhile, the developed platform can be integrated into QTT backends for baseband data collection and Very Long Baseline Interferometry observation. |
| 资助项目 | National Key Ramp;D Program of China[2021YFC2203502] ; National Natural Science Foundation of China (NSFC)[12073066] ; National Natural Science Foundation of China (NSFC)[61931002] ; Youth Innovation Promotion Association of Chinese Academy of Sciences (CAS)[2020063] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[PTYQ2022YZZD01] ; Scientific Instrument Developing Project of the CAS[2022-XBQNXZ-012] ; CAS~Light of West China ; [2021D01E07] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:001034171600001 |
| 资助机构 | National Key Ramp;D Program of China ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association of Chinese Academy of Sciences (CAS) ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Scientific Instrument Developing Project of the CAS ; CAS~Light of West China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5355]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Pei, Xin |
| 作者单位 | 1.Xinjiang Key Lab Microwave Technol, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pei, Xin,Li, Jian,Duan, Xuefeng,et al. QTT Ultra-wideband Signal Acquisition and Baseband Data Recording System Design Based on the RFSoC Platform[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2023,135(1049):11. |
| APA | Pei, Xin,Li, Jian,Duan, Xuefeng,&Zhang, Hailong.(2023).QTT Ultra-wideband Signal Acquisition and Baseband Data Recording System Design Based on the RFSoC Platform.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,135(1049),11. |
| MLA | Pei, Xin,et al."QTT Ultra-wideband Signal Acquisition and Baseband Data Recording System Design Based on the RFSoC Platform".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 135.1049(2023):11. |
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来源：新疆天文台
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