测绘通报 ›› 2018, Vol. 0 ›› Issue (10): 1-5.doi: 10.13474/j.cnki.11-2246.2018.0303

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Current Status of Large-scale GNSS Network Development and Data Processing

LI Linyang1, ZHANG Xuedong2, HUANG Xian3, LI Chonghui1, LÜ Zhiping1   

  1. 1. School of Surveying and Mapping, Information Engineering University, Zhengzhou 450001, China;
    2. 31439 Troop, Shenyang 110000, China;
    3. Henan University of Technology, Zhengzhou 450001, China
  • Received:2018-01-03 Online:2018-10-25 Published:2018-10-31

Abstract: Large-scale GNSS network is a critical infrastructure to achieve high-accuracy location service.The current development status of large-scale GNSS network is analyzed from the aspect of space segment,ground segment and data quantity.Available satellites and frequencies increase significantly in the space segment,while the scale of GNSS network is bigger and bigger in the ground segment,and thus the GNSS data quantity increases exponentially.Then,the storage and management method of massive GNSS data are summarized in detail,centralized storage method cannot meet the needs of large-scale GNSS network data storage application,while cloud storage is an effective solution.Finally,the processing strategies of large GNSS network are concluded systematically,and the bottleneck of GNSS data processing is solved by improving model algorithm and using parallel computing technology.

Key words: GNSS, continuously operating reference station, large-scale network, data processing

CLC Number: