An Artificial Pulsar-signal Generator for Pulsar Search
文献类型：期刊论文
| 作者 | Yu, Yun6,7,8; Gu, Junhua5,6; Guo, Quan6,8; Yang, Jun4; Zhou, Zurong2,3,7; Hu, Yue2,3,7; Zhao, Chengshi2,3,7; Li, Peng1; Zhao, Bixuan8 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2026-04-29 |
| 卷号 | 26期号:4页码:13 |
| 关键词 | Astronomical Instrumentation, Methods and Techniques (stars:) pulsars: general techniques: image processing |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ae3f08 |
| 通讯作者 | Yu, Yun(yuyun@shao.ac.cn) |
| 英文摘要 | Pulsars, which are spinning neutron stars emit regular pulses and are essential to time-domain radio astronomy. Numerous observatories concentrate on detecting and researching faint pulsar signals, especially at radio frequencies. To enable rapid system verification, optimization, and troubleshooting, we have devised a cost-effective artificial pulsar signal generator utilizing an economical software-defined radio. These artificial signals are digitally synthesized with customizable parameters such as pulse period, dispersion measure, central frequency, bandwidth, sampling rate, pulse duration, and noise level. The central frequency can be set within 70 MHz-6 GHz, the instantaneous bandwidth up to 56 MHz, and the output power controlled via the gain setting, typically ranging from -20 to +10 dBm depending on frequency and gain. By incorporating frequency-dependent dispersion delays and Gaussian noise, these simulated signals can replicate the time and spectral features of actual pulsar emissions in a laboratory setting. Additionally, we performed single-dish experiments using the simulated pulsar signal and the 40 m radio telescope at Haoping Station, China. The resulting data were processed with standard pulsar signal analysis software. This demonstrates the signal generator's precision in fulfilling system calibration and verification needs for pulsar observations. As an affordable and compact device, the pulsar signal simulator enables researchers to design and experiment with new-generation pulsar backends anywhere and at any time without relying on a strong pulsar source. Moreover, it offers astronomers the opportunity to engage in pulsar-related educational activities using a small antenna at frequencies <6 GHz. |
| WOS关键词 | RADIO-BURST |
| 资助项目 | Key Program of the National Natural Science Foundation of China[12433012] ; National SKA Program of China[SQ2020SKA0110200] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001699056800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Key Program of the National Natural Science Foundation of China ; National SKA Program of China |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8587]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Yu, Yun |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian 710600, Peoples R China 3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 4.Chalmers Univ Technol, Onsala Space Observ, SE-43992 Onsala, Sweden 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 6.State Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Yun,Gu, Junhua,Guo, Quan,et al. An Artificial Pulsar-signal Generator for Pulsar Search[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2026,26(4):13. |
| APA | Yu, Yun.,Gu, Junhua.,Guo, Quan.,Yang, Jun.,Zhou, Zurong.,...&Zhao, Bixuan.(2026).An Artificial Pulsar-signal Generator for Pulsar Search.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,26(4),13. |
| MLA | Yu, Yun,et al."An Artificial Pulsar-signal Generator for Pulsar Search".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 26.4(2026):13. |
入库方式： OAI收割
来源：新疆天文台
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