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Research on Ultra-wide Bandwidth Low-frequency Signal Channelization for Xinjiang 110 m Radio Telescope

文献类型：期刊论文

作者Zhang, Hai-Long1,2,3,4; Zhang, Ya-Zhou1,2; Zhang, Meng5; Wang, Jie1,4; Li, Jian1; Ye, Xin-Chen1,2,4; Pei, Xin1
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2023-12-01
卷号23期号:12页码:125023
关键词pulsars: general methods: data analysis techniques: miscellaneous
ISSN号1674-4527
DOI10.1088/1674-4527/ad0427
产权排序1
英文摘要Aiming at the subband division of ultra-wide bandwidth low-frequency (UWL) signal (frequency coverage range: 704-4032 MHz) of the Xinjiang 110 m QiTai radio Telescope (QTT), a scheme of ultra-wide bandwidth signal is designed. First, we analyze the effect of different window functions such as the Hanning window, Hamming window, and Kaiser window on the performance of finite impulse response (FIR) digital filters, and implement a critical sampling polyphase filter bank (CS-PFB) based on the Hamming window FIR digital filter. Second, we generate 3328 MHz simulation data of ultra-wideband pulsar baseband in the frequency range of 704-4032 MHz using the ultra-wide bandwidth pulsar baseband data generation algorithm based on the 400 MHz bandwidth pulsar baseband data obtained from Parkes CASPSR observations. Third, we obtain 26 subbands of 128 MHz based on CS-PFB and the simulation data, and the pulse profile of each subband by coherent dispersion, integration, and folding. Finally, the phase of each subband pulse profile is aligned by non-coherent dedispersion, and to generate a broadband pulse profile, which is basically the same as the pulse profile obtained from the original data using DSPSR. The experimental results show that the scheme for the QTT UWL receiving system is feasible, and the proposed channel algorithm in this paper is effective.
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)[12003062] ; 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]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001113460600001
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
源URL[http://ir.xao.ac.cn/handle/45760611-7/5652]  
专题新疆天文台_计算机技术室
新疆天文台_110米口径全可动射电望远镜（SmART）_技术成果
通讯作者Zhang, Hai-Long; Zhang, Meng
作者单位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
5.Qufu Normal Univ, Sch Cyber Sci & Engn, Qufu 273165, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Hai-Long,Zhang, Ya-Zhou,Zhang, Meng,et al. Research on Ultra-wide Bandwidth Low-frequency Signal Channelization for Xinjiang 110 m Radio Telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(12):125023.
APA Zhang, Hai-Long.,Zhang, Ya-Zhou.,Zhang, Meng.,Wang, Jie.,Li, Jian.,...&Pei, Xin.(2023).Research on Ultra-wide Bandwidth Low-frequency Signal Channelization for Xinjiang 110 m Radio Telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(12),125023.
MLA Zhang, Hai-Long,et al."Research on Ultra-wide Bandwidth Low-frequency Signal Channelization for Xinjiang 110 m Radio Telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.12(2023):125023.

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来源：新疆天文台

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