GNSS World of China

Volume 47 Issue 3
Jul.  2022
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WU Tangting, LIANG Qiao, CHEN Benfu, LU Liguo. Comparative analysis of three GNSS data download methods[J]. GNSS World of China, 2022, 47(3): 99-103. doi: 10.12265/j.gnss.2021120602
Citation: WU Tangting, LIANG Qiao, CHEN Benfu, LU Liguo. Comparative analysis of three GNSS data download methods[J]. GNSS World of China, 2022, 47(3): 99-103. doi: 10.12265/j.gnss.2021120602
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Comparative analysis of three GNSS data download methods

doi: 10.12265/j.gnss.2021120602
  • 1.

    Research Center of Resource and Environment Economics, East China University of Technology, Nanchang 330013, China

  • 2.

    Faculty of Geomatics, East China University of Technology, Nanchang 330013, China

  • 3.

    Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin University of Technology, Guilin 541006, China

  • Received Date: 2021-12-06
    Available Online: 2022-06-08
    Abstract
  • In order to comprehensively evaluate the performance of single-thread, multi-thread, and multi-coroutine in Global Navigation Satellite System (GNSS) data download, this paper uses the International GNSS Service (IGS) data center of Wuhan University as the download source and analyzes the download effects of three methods in terms of the time span and magnitude of the download file. The results show that in the process of small and medium-sized files download, multi-thread has more advantages than single-thread and multi-coroutine,while for large file downloads, the download effect of multi-coroutine is slightly better than multi-thread, and both have better performance than that of single-thread. Since GNSS data file is generally small and medium-sized file, multi-thread is more suitable for GNSS data download.

     

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