Institutional Repository of Computer Application Research Laboratory
| An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT | |
Zhang, Hai-long1,2,3,4 ; Zhang, Ya-zhou1; Guo, Shao-cong5; Du, Xu1,2; Wang, Na1; Wang, Jie1,4; Ye, Xin-chen1,2,4; Wu, Han1,2; Li, Jian1,2; Pei, Xin1; Meng, Qiao5
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| 2024-11-01 | |
| Source Publication | ASTRONOMICAL JOURNAL
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| ISSN | 0004-6256 |
| Volume | 168Issue:5Pages:14 |
| Contribution Rank | 1 |
| Abstract | 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. |
| DOI | 10.3847/1538-3881/ad7fe0 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001340756300001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7087 |
| Collection | 计算机技术应用研究室 110米口径全可动射电望远镜（QTT）_技术成果 射电天文研究室_脉冲星研究团组 射电天文研究室_天线技术实验室 |
| Corresponding Author | Zhang, Hai-long |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, People's Republ China, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radioastron, Urumqi 210008, Peoples R China 4.Natl Astron Data Ctr, Beijing 100101, Peoples R China 5.Southeast Univ, Nanjing 211189, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhang-2024-An Ultraw（3019KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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