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

• 学术研究 •    下一篇

大规模GNSS网发展及数据处理现状

李林阳1, 张学东2, 黄娴3, 李崇辉1, 吕志平1   

  1. 1. 信息工程大学地理空间信息学院, 河南 郑州 450001;
    2. 31439部队, 辽宁 沈阳 110000;
    3. 河南工业大学, 河南 郑州 450001
  • 收稿日期:2018-01-03 出版日期:2018-10-25 发布日期:2018-10-31
  • 通讯作者: 吕志平。E-mail:ssscenter@126.com E-mail:ssscenter@126.com
  • 作者简介:李林阳(1991-),男,博士生,主要从事测量数据处理理论与方法研究。E-mail:lilinyang810810@163.com
  • 基金资助:
    国家自然科学基金(41674019;41604011);地理信息工程国家重点实验室开放基金(SKLGIE2016-M-1-2;SKLGIE2016-M-2-2)

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

摘要: 大规模GNSS网是实现高精度位置服务的重要基础设施。本文从空间段、地面段和数据规模3个方面梳理了大规模GNSS网的发展现状;空间段可用的卫星和频率资源显著增加,地面段GNSS网的规模越来越大,GNSS的数据规模呈指数级趋势倍增。详细总结了海量GNSS数据的存储与管理方法,集中式存储方法已不能满足大规模GNSS网数据存储应用的需要,云存储是一种有效的解决方案。系统归纳了GNSS大网的解算策略,当前主要通过改进模型算法和采用并行计算技术两个途径解决GNSS大网数据解算面临的瓶颈。

关键词: 全球卫星导航系统, 连续运行基准站, 大规模网, 数据处理

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

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