Institutional Repository of Radio Astronomy Research Laboratory
| 超宽带脉冲星信号采集与处理架构设计及功能验证 | |
| Alternative Title | Design of ultra-wideband pulsar signal acquisition and processing architecture and functional verification |
裴鑫1,2 ; 李健1,2; 段雪峰1,2; 张海龙1
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| 2024 | |
| Source Publication | 中国科学: 物理学 力学 天文学
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| ISSN | 1674-7275 |
| Volume | 54Issue:1Pages:219508 |
| Contribution Rank | 1 |
| Abstract | 采用超宽带观测系统对于提升脉冲星到达时间精度具有显著效果, 但超宽带接收系统所产生的超高速数据流对终端系统的实时传输、分发和处理形成了较大挑战.论文以QTT规划的S波段超宽带接收系统为对象, 采用先进的射频信号直接采集和混合架构多功能天文计算模型设计了脉冲星信号采集与处理系统架构.论文采用一块RFSoC平台将宽带模拟信号分为2个模拟子带进行采集, 然后信道化为多个数字子带并通过2个100 Gb网络端口分发至多个HPC处理节点进行实时处理, 可实现3 GHz宽带信号的同步采集和多功能处理, 系统架构简洁、可扩展性强.论文对射频信号分段采集、100 Gb网络多路分发、VDIF数据格式封装等功能进行了测试, 并开展了单子带脉冲星观测实验. |
| Other Abstract | The ultra-wideband observation system has a remarkable impact on improving the accuracy of pulsar arrival time. However, the ultra-high-speed data stream generated by the receiving system poses a substantial challenge to the realtime transmission, distribution, and processing of signals. The architecture of the pulsar signal acquisition and processing system is designed using advanced RF-direct signal acquisition and hybrid architecture multifunctional astronomical computing model to prepare the S-band UWB receiving system proposed by QTT. This report used an RFSoC platform to divide the broadband analog signal into two analog sub-bands for acquisition. These were then channelized into multiple digital sub-bands and distributed to multiple HPC processing nodes through two 100 Gb ports for real-time processing. The acquisition and multifunctional processing of broadband signals and the system architecture are simple and expandable. It can accomplish 3 GHz broadband signal simultaneous acquisition and multifunctional processing. Remarkably, the system architecture is simple and has high scalability. This research evaluated the functions of radio frequency signal segment acquisition, 100 Gb network multiplexing, and VDIF data format packetization and conducted the monoband pulsar observation experiment. |
| Keyword | 数字终端 超宽带 脉冲星高精度计时 射频直接采样 Digital bakcend ultra-wideband pulsar high-precision timing RF-direct sampling |
| DOI | https://doi.org/10.1360/SSPMA-2023-0232 |
| URL | 查看原文 |
| Indexed By | CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| WOS ID | CSCD:7658833 |
| CSCD ID | CSCD:7658833 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7606 |
| Collection | 射电天文研究室_数字技术实验室 计算机技术应用研究室 |
| Corresponding Author | 裴鑫 |
| Affiliation | 1.中国科学院新疆天文台，乌鲁木齐 830011; 2.新疆微波技术重点实验室，乌鲁木齐 830011 |
| 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 | 裴鑫,李健,段雪峰,等. 超宽带脉冲星信号采集与处理架构设计及功能验证[J]. 中国科学: 物理学 力学 天文学,2024,54(1):219508. |
| APA | 裴鑫,李健,段雪峰,&张海龙.(2024).超宽带脉冲星信号采集与处理架构设计及功能验证.中国科学: 物理学 力学 天文学,54(1),219508. |
| MLA | 裴鑫,et al."超宽带脉冲星信号采集与处理架构设计及功能验证".中国科学: 物理学 力学 天文学 54.1(2024):219508. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 裴鑫-2023-超宽带脉冲星信号采集与处（1783KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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