首页|PSRDP:A Parallel Processing Method for Pulsar Baseband Data

PSRDP:A Parallel Processing Method for Pulsar Baseband Data

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To address the problem of real-time processing of ultra-wide bandwidth pulsar baseband data,we designed and implemented a pulsar baseband data processing algorithm(PSRDP)based on GPU parallel computing technology.PSRDP can perform operations such as baseband data unpacking,channel separation,coherent dedispersion,Stokes detection,phase and folding period prediction,and folding integration in GPU clusters.We tested the algorithm using the J0437-4715 pulsar baseband data generated by the CASPSR and Medusa backends of the Parkes,and the J0332+5434 pulsar baseband data generated by the self-developed backend of the NanShan Radio Telescope.We obtained the pulse profiles of each baseband data.Through experimental analysis,we have found that the pulse profiles generated by the PSRDP algorithm in this paper are essentially consistent with the processing results of Digital Signal Processing Software for Pulsar Astronomy(DSPSR),which verified the effectiveness of the PSRDP algorithm.Furthermore,using the same baseband data,we compared the processing speed of PSRDP with DSPSR,and the results showed that PSRDP was not slower than DSPSR in terms of speed.The theoretical and technical experience gained from the PSRDP algorithm research in this article lays a technical foundation for the real-time processing of QTT(Qi Tai radio Telescope)ultra-wide bandwidth pulsar baseband data.

(stars:)pulsars:generalmethods:data analysistechniques:miscellaneous

Ya-Zhou Zhang、Hai-Long Zhang、Jie Wang、Xin-Chen Ye、Shuang-Qiang Wang、Xu Du、Han Wu、Ting Zhang、Shao-Cong Guo、Meng Zhang

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Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China

University of Chinese Academy of Sciences,Beijing 100049,China

Key Laboratory of Radio Astronomy,Chinese Academy of Sciences,Nanjing 210008,China

National Astronomical Data Center,Beijing 100101,China

Southeast University,Nanjing 211189,China

School of Cyber Science and Engineering,Qufu Normal University,Qufu 273165,China

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国家重点研发计划国家重点研发计划国家自然科学基金国家自然科学基金Tianshan Innovation Team Plan of Xinjiang Uygur Autonomous RegionTianshan Talent Project of Xinjiang Uygur Autonomous RegionScientific Instrument Developing Project of the Chinese Academy of SciencesChina National Astronomical Data Center(NADC)Operation,Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments,budgeted from the Ministry of 中国科学院项目新疆维吾尔自治区自然科学基金

2021YFC22035022022YFF071150212173077120030622022D140202022TSYCCX0095PTY Q2022YZZD012022D01A360

2024

10.1088/1674-4527/ad0e99

天文和天体物理学研究
中国科学院国家天文台

天文和天体物理学研究

CSTPCD
影响因子：0.406
ISSN：1674-4527
年,卷(期)：2024.24(1)
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