测绘通报 ›› 2018, Vol. 0 ›› Issue (5): 86-89.doi: 10.13474/j.cnki.11-2246.2018.0149

• 技术交流 • 上一篇    下一篇

广域差分产品性能评估关键技术探究

王孝青1, 武军郦1, 陈明1, 宋伟伟2, 张东2   

  1. 1. 国家基础地理信息中心, 北京 100830;
    2. 武汉大学卫星导航定位技术研究中心, 湖北 武汉 430079
  • 收稿日期:2017-09-12 修回日期:2018-02-23 出版日期:2018-05-25 发布日期:2018-05-31
  • 作者简介:王孝青(1983-),女,硕士,高级工程师,主要从事GNSS数据处理与应用技术研究工作。E-mail:xqwang@ngcc.cn
  • 基金资助:

    国家自然科学基金(41504020);国家测绘地理信息局基础测绘项目

Research on Methods for Products Properties Evaluation of Wide Area Differential System

WANG Xiaoqing1, WU Junli1, CHEN Ming1, SONG Weiwei2, ZHANG Dong2   

  1. 1. National Geomatics Center of China, Beijing 100830, China;
    2. Research Center of GNSS, Wuhan University, Wuhan 430079, China
  • Received:2017-09-12 Revised:2018-02-23 Online:2018-05-25 Published:2018-05-31

摘要:

广域差分定位是卫星导航系统应用领域的前沿技术与研究热点,可为用户提供亚米级甚至厘米级精度的实时定位服务,其产品性能的综合评估和评价对用户至关重要。本文基于我国广域差分精密轨道、钟差、电离层产品特性,设计了一套实时产品性能评估方案,解决了实时产品量化评价关键技术问题,实现了产品连续性、时效性、有效性、定位精度等实时性能自动化监测,以及产品事后精度自动化评定,可为广域差分用户提供实时产品性能量化参考指标。

关键词: 产品性能, 指标设计, 实时监测, 精度评定

Abstract:

At present,the wide area differential(WAD)positioning is a cutting-edge issues for application of satellite navigation system,which can provide sub-meter or even centimeter-level accuracy real-time positioning,and the comprehensive evaluation of the products is critical for users.In this paper,a real-time product evaluation scheme is designed,based on the precision orbit,clock,and ionospheric product of wide area differential system.The scheme solves the key problems for real-time product quantitative evaluation,and realizes the automatic monitoring for the product continuity,timeliness,effectiveness and real-time positioning,as well as the automatic post analysis of the product accuracy.The paper provides quantitative reference index of real-time product properties for wide area differential users.

Key words: products properties, index design, real-time monitoring, accuracy evaluation

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