The RFI Fast Mitigation Algorithm Based on Block LMS Filter
文献类型：期刊论文
| 作者 | Wu, Han1,4; Zhang, Hai-Long1,2,3,4 ; Zhang, Ya-Zhou1,4; Wang, Jie1,2; Du, Xu1,4; Zhang, Ting1,4; Ye, Xin-Chen1,4
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2024 |
| 卷号 | 24期号:1页码:015021 |
| 关键词 | methods: data analysis techniques: interferometric (stars:) pulsars: individual (J0437-4715) |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ad05e9 |
| 产权排序 | 1 |
| 英文摘要 | The radio telescope possesses high sensitivity and strong signal collection capabilities. While receiving celestial radiation signals, it also captures Radio Frequency Interferences (RFIs) introduced by human activities. RFI, as signals originating from sources other than the astronomical targets, significantly impacts the quality of astronomical data. This paper presents an RFI fast mitigation algorithm based on block Least Mean Square (LMS) algorithm. It enhances the traditional adaptive LMS filter by grouping L adjacent time-sampled points into one block and applying the same filter coefficients for filtering within each block. This transformation reduces multiplication calculations and enhances algorithm efficiency by leveraging the time-domain convolution theorem. The algorithm is tested using baseband data from the Parkes 64 m radio telescope's pulsar observations and simulated data. The results confirm the algorithm's effectiveness, as the pulsar profile after RFI mitigation closely matches the original pulsar profile. |
| WOS关键词 | RADIO-FREQUENCY INTERFERENCE |
| 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 (NSFC)[12173077] ; National Natural Science Foundation of China (NSFC)[12073067] ; Tianshan Innovation Team Plan of Xinjiang Uygur Autonomous Region[2022D14020] ; Tianshan Talent Project of Xinjiang Uygur Autonomous Region[2022TSYCCX0095] ; 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] ; CAS Light of West China program under No.2022-XBQNXZ-012 ; Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001138769700001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Tianshan Innovation Team Plan of Xinjiang Uygur Autonomous Region ; 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 ; CAS Light of West China program under No.2022-XBQNXZ-012 ; Chinese Academy of Sciences |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5702]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zhang, Hai-Long |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Natl Astron Data Ctr, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Han,Zhang, Hai-Long,Zhang, Ya-Zhou,et al. The RFI Fast Mitigation Algorithm Based on Block LMS Filter[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(1):015021. |
| APA | Wu, Han.,Zhang, Hai-Long.,Zhang, Ya-Zhou.,Wang, Jie.,Du, Xu.,...&Ye, Xin-Chen.(2024).The RFI Fast Mitigation Algorithm Based on Block LMS Filter.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(1),015021. |
| MLA | Wu, Han,et al."The RFI Fast Mitigation Algorithm Based on Block LMS Filter".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.1(2024):015021. |
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来源：新疆天文台
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