广域差分产品性能评估关键技术探究  

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

作　　者：王孝青[1] 武军郦[1] 陈明[1] 宋伟伟[2] 张东 WANG Xiaoqing;WU Junli;CHEN Ming;SONG Weiwei;ZHANG Dong(National Geomaties Center of China, Beijing 100830, China;Research Center of GNSS, Wuhan University,Wuhan 430079, China)

机构地区：[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

出　　处：《测绘通报》2018年第5期86-89,共4页Bulletin of Surveying and Mapping

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

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。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.

关 键 词：产品性能 指标设计 实时监测 精度评定 

分 类 号：P228[天文地球—大地测量学与测量工程]