Institutional Repository of Radio Astronomy Research Laboratory
| Design of RFSoC-based Digital Phased Array Feed (PAF) and Hybrid Architecture Beamforming System | |
Pei, Xin1,2,3 ; Wang, Na1; Werthimer, Dan4; Duan, Xue-Feng1,3; Li, Jian1,3; Ergesh, Toktonur1,3; Liu, Qi1,3; Cai, Ming-Hui1,3
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| 2022-04-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 22Issue:4Pages:045016 |
| Contribution Rank | 1 |
| Abstract | As the number of array elements and bandwidth increase, the design challenges of the Phased Array Feed (PAF) front-end and its signal processing system increase. Aiming at the ng-PAF of the 110 m radio telescope, this article introduces the concept of fully digital receivers and attempts to use Radio Frequency System-on-Chip (RFSoC) technology to digitize close to the feed array, reduce the complexity and analog components of the front-end, and improve the fidelity of the signals. The article discusses the digital beamforming topology and designs a PAF signal processing experimental system based on RFSoC+GPU hybrid architecture. The system adopts a ZCU111 board to design RF-direct digitization and preprocessing front-end, which can sample eight signals up to 2.048 GSPS, 12 bit, channelize the signals into 1024 chunks, then reorder into four data streams and select one of the 256 MHz frequency bands to output through four 10 Gb links. A GPU server is equipped with four RTX 3090 GPUs running four HRBF_HASHPIPE instances, each receiving a 64 MHz bandwidth signal for high-throughput real-time beamforming. The experimental system uses a signal generator to emulate Sa-like signals and propagates through rod antennas, which verifies the effectiveness of the beamforming algorithm. Performance tests show that after algorithm optimization, the average processing time for a given 4 ms data is less than 3 ms in the four-GPU parallel processing mode. The RFSoC integrated design shows significant advantages in power consumption and electromagnetic radiation compared with discrete circuits according to the measurement results. |
| Keyword | instrumentation: miscellaneous techniques: miscellaneous telescopes |
| DOI | 10.1088/1674-4527/ac56cb |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[12073066] ; National Key R&D Program of China[2021YFC2203502] ; Youth Innovation Promotion Association of CAS[2020063] ; NSFC[61931002] ; NSFC[12073067] ; NSFC[11973077] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2021D01E07] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000776451300001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; Youth Innovation Promotion Association of CAS ; NSFC ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4594 |
| Collection | 射电天文研究室_数字技术实验室 其它 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_微波技术实验室 |
| Corresponding Author | Pei, Xin; Wang, Na |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xinjiang Key Lab Microwave Technol, Urumqi 830011, Peoples R China 4.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA |
| 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 | Pei, Xin,Wang, Na,Werthimer, Dan,et al. Design of RFSoC-based Digital Phased Array Feed (PAF) and Hybrid Architecture Beamforming System[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(4):045016. |
| APA | Pei, Xin.,Wang, Na.,Werthimer, Dan.,Duan, Xue-Feng.,Li, Jian.,...&Cai, Ming-Hui.(2022).Design of RFSoC-based Digital Phased Array Feed (PAF) and Hybrid Architecture Beamforming System.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(4),045016. |
| MLA | Pei, Xin,et al."Design of RFSoC-based Digital Phased Array Feed (PAF) and Hybrid Architecture Beamforming System".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.4(2022):045016. |
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| File Name/Size | DocType | Version | Access | License | ||
| Pei-2022-Design of R（3024KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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