长距离网络RTK区域电离层延迟实时改正  

A wide range of network RTK regional ionospheric delay correction

作　　者：王建敏[1] 吕楠 李亚博 WANG Jianmin;LU Nan;LI Yabo(School of Geomatics,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学测绘与地理科学学院

出　　处：《测绘通报》2019年第5期106-108,共3页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41474020)

摘　　要：针对网络RTK基线过长时电离层延迟的相关性就会减弱的问题,本文提出了一种长距离网络RTK区域电离延迟改正模型。首先利用已知载波值和确定的非差参考模糊度计算基准站的电离层延迟,进而传播至流动站,最后内插计算流动站电离层延迟,得到电离层延迟改正。通过实测CORS数据进行验证,结果表明,该算法可使长距离网络RTK达到厘米级精度的定位结果。When the base of network RTK is too long,ionospheric delay in the region will weaken. A model of ionospheric delay correction in RTK region is proposed. Firstly,ionospheric delay is calculated based on the known carrier value and the determined nondifference reference ambiguity,and then send rover,finally ionospheric delay is interpolated,get ionospheric delay correction. Through measured CORS data,the results are shown that the algorithm make wide range RTK achieve the cm level results.

关 键 词：长距离 网络RTK 基准站 电离层延迟 内插 

分 类 号：P228.4[天文地球—大地测量学与测量工程]