KMS of Xinjiang Astronomical Observatory, CAS
| The RFI Fast Mitigation Algorithm Based on Block LMS Filter | |
Wu, Han1,2; Zhang, Hai-Long1,2,3,4 ; Zhang, Ya-Zhou1,2; Wang, Jie1,4; Du, Xu1,2; Zhang, Ting1,2; Ye, Xin-Chen1,2
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| 2024 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| ISSN | 1674-4527 |
| Volume | 24Issue:1Pages:015021 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | methods: data analysis techniques: interferometric (stars:) pulsars: individual (J0437-4715) |
| DOI | 10.1088/1674-4527/ad05e9 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RADIO-FREQUENCY INTERFERENCE |
| Funding Project | 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 Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001138769700001 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5703 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Zhang, Hai-Long |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 4.Natl Astron Data Ctr, Beijing 100101, 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 | 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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| File Name/Size | DocType | Version | Access | License | ||
| Wu-2024-The RFI Fast（834KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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