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Radio frequency interference identification using eigenvalue decomposition for multi-beam observations

文献类型：期刊论文

作者Bai, Juntao4,5; Dai, Shi6,7; Wang, Na1,4,8; Oslowski, Stefan6; Wang, Shuangqiang1,4,6,8; Hobbs, George6; Yuan, Jianping1,4,8; Yan, Wenming1,4,8; Zhi, Qijun2,3; Shang, Lunhua2,3
刊名PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
出版日期2026-01-02
卷号43页码:8
关键词astronomical instrumentation: radio telescopes astronomical techniques: time domain astronomy methods: data analysis pulsars: general transients: fast radio bursts
ISSN号1323-3580
DOI10.1017/pasa.2025.10139
产权排序1;2;3;4;5;6;7;8
英文摘要With the installation of next-generation phased array feed (PAF) receivers on radio telescopes, there is an urgent need to develop effective and computationally efficient radio frequency interference (RFI) mitigation methods for large-scale surveys. Here, we present a new RFI mitigation package, called mRAID (multi-beam RAdio frequency Interference Detector), which uses the eigenvalue decomposition algorithm to identify RFI in cross-correlation matrix (CCM) of data recorded by multiple beams. When applied to high time-resolution pulsar search data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), mRAID demonstrates excellent performance in identifying RFI over short timescales, thereby enhancing the efficiency of pulsar and fast radio burst (FRB) searches. Since the computation of the CCM and the eigenvalue decomposition for each time sub-integration and frequency channel are independent, the process is fully parallelisable. As a result, mRAID offers a significant computational advantage over commonly used RFI detection methods.
WOS关键词MITIGATION ; PULSAR
资助项目National Natural Science Foundation of China[12288102] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[12273008] ; National Natural Science Foundation of China[12041303] ; National Natural Science Foundation of China[12403046] ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-3] ; National SKA Program of China[2022SKA0130100] ; National SKA Program of China[2022 SKA0130104] ; National SKA Program of China[2020SKA0120200] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Natural Science and Technology Foundation of Guizhou Province[[2023]024] ; Guizhou Provincial Basic Research Program (Natural Science)[QiankehejichuMS[2025]266] ; Chinese Academy of Sciences
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001663053000001
出版者CAMBRIDGE UNIV PRESS
资助机构National Natural Science Foundation of China ; Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; National SKA Program of China ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; Ministry of Finance of China ; Natural Science and Technology Foundation of Guizhou Province ; Guizhou Provincial Basic Research Program (Natural Science) ; Chinese Academy of Sciences
源URL[http://ir.xao.ac.cn/handle/45760611-7/8481]  
专题脉冲星研究团组
通讯作者Dai, Shi; Wang, Na
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, State Key Lab Radio Astron & Technol, Urumqi, Xinjiang, Peoples R China
2.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang, Peoples R China
3.Guizhou Normal Univ, Guizhou Prov Key Lab Radio Astron & Data Proc, Guiyang, Peoples R China
4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi, Xinjiang, Peoples R China
5.Henan Acad Sci, Inst Gravitat Wave Astron, Zhengzhou, Henan, Peoples R China
6.CSIRO, Space & Astron, Australia Telescope Natl Facil, Epping, NSW, Australia
7.Western Sydney Univ, Penrith, NSW, Australia
8.Xinjiang Key Lab Radio Astrophys, Urumqi, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Bai, Juntao,Dai, Shi,Wang, Na,et al. Radio frequency interference identification using eigenvalue decomposition for multi-beam observations[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2026,43:8.
APA Bai, Juntao.,Dai, Shi.,Wang, Na.,Oslowski, Stefan.,Wang, Shuangqiang.,...&Zhao, De.(2026).Radio frequency interference identification using eigenvalue decomposition for multi-beam observations.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,43,8.
MLA Bai, Juntao,et al."Radio frequency interference identification using eigenvalue decomposition for multi-beam observations".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 43(2026):8.

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