An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT
文献类型：期刊论文
| 作者 | Zhang, Hai-long1,3,4,5 ; Zhang, Ya-zhou3; Guo, Shao-cong2; Du, Xu3,4; Wang, Na3; Wang, Jie1,3; Ye, Xin-chen1,3,4; Wu, Han3,4; Li, Jian3,4; Pei, Xin3
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2024-11-01 |
| 卷号 | 168期号:5页码:14 |
| ISSN号 | 0004-6256 |
| DOI | 10.3847/1538-3881/ad7fe0 |
| 产权排序 | 1 |
| 英文摘要 | For the planning of the QiTai radio Telescope ultrawide bandwidth low-frequency pulsar receiving system, we designed and implemented a Field-Programmable Gate Array (FPGA)+CPU/GPU hybrid architecture digital backend system based on the Polyphase FilterBank (PFB) channeling algorithm. We used the FPGA signal acquisition and processing platform to implement ultrawide bandwidth signal sampling and designed the PFB algorithm to realize the digital channelization of multiple analog bandwidth signals. We also developed data encapsulation and multichannel parallel distribution firmware algorithms and realized the real-time parallel transmission of high-speed astronomical data streams based on the VLBI Data Interchange Format. We developed the Ultra Wide bandwidth Low-frequency pulsar data process PIPEline, which realized the real-time processing and data packaging of massive pulsar signals. Using the L-band (964-1732 MHz bandwidth) receiving system of the Nanshan 26 m radio telescope, we conducted a systematic test on the designed digital backend system and obtained high-quality observation data. By using the professional pulsar data processing software DSPSR to process the observation data, we obtained high signal-to-noise ratio pulse profiles. |
| 资助项目 | National Key R&D Program of China[2021YFC2203502] ; National Key R&D Program of China[2022YFF0711502] ; National Natural Science Foundation of China[12173077] ; Tianshan Talent Project of Xinjiang Uygur Autonomous Region[2022TSYCCX0095] ; Tianshan Talent Project of Xinjiang Uygur Autonomous Region[2023TSYCCX0112] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences[PTYQ2022YZZD01] ; China National Astronomical Data Center (NADC) ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2022D01A360] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001340756300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Tianshan Talent Project of Xinjiang Uygur Autonomous Region ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; China National Astronomical Data Center (NADC) ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Natural Science Foundation of Xinjiang Uygur Autonomous Region |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7086]  |
| 专题 | 新疆天文台_计算机技术室 新疆天文台_110米口径全可动射电望远镜（SmART）_技术成果 脉冲星研究团组 射电天文研究室_天线技术实验室 |
| 通讯作者 | Zhang, Hai-long |
| 作者单位 | 1.Natl Astron Data Ctr, Beijing 100101, Peoples R China 2.Southeast Univ, Nanjing 211189, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Univ Chinese Acad Sci, People's Republ China, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Radioastron, Urumqi 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Hai-long,Zhang, Ya-zhou,Guo, Shao-cong,et al. An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT[J]. ASTRONOMICAL JOURNAL,2024,168(5):14. |
| APA | Zhang, Hai-long.,Zhang, Ya-zhou.,Guo, Shao-cong.,Du, Xu.,Wang, Na.,...&Meng, Qiao.(2024).An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT.ASTRONOMICAL JOURNAL,168(5),14. |
| MLA | Zhang, Hai-long,et al."An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT".ASTRONOMICAL JOURNAL 168.5(2024):14. |
入库方式： OAI收割
来源：新疆天文台
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