GNSS参考站网络的电离层完备性监测研究  

Ionosphere integrity monitoring based on GNSS reference station network

作　　者：周东卫[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043

出　　处：《测绘科学》2014年第2期27-31,共5页Science of Surveying and Mapping

摘　　要：本文基于四川GPS综合服务网络(SIGN)的计算结果表明:IRIM指标可用于衡量参考站网络内的电离层完备性监测的总体情况,IRIU指标提供了完备性监测信息在参考站网络中更为详细的空间分布情况,上述指标应用于参考站网络数据处理中心进行实时电离层完备性监测,能有效保证参考站网络内流动端用户定位的时间空间可用性和可靠性。In this paper, two indicators for the integrity monitoring in double-differenced ionospheric delay were proposed to predict the ionospheric linearity, called Ionospheric Residual Integrity Monitoring （IRIM） and Ionospheric Residual Interpolation Uncertainty （IRIU）, whereafter experiments were carried out to test the performance Of the above indicators with the data in SIGN. The results showed that, IRIM indicator could reflect the general edndition of the integrity monitoring for double-differenced ionospheric delay, and IRIU indicator could provide in detail of its spatial distribution within GNSS reference station network. The usability and reliability for the network RTK user in positioning would be ensured through the proposed indicators used for real-time integrity monitoring of double-differenced ionospheric delay in data processing software of GNSS reference station network.

关 键 词：GNSS 多参考站网络技术 完备性监测 电离层残差完备性监测指标(IRIM) 电离层残差内插不确定性指标(IRIU) ’ 

分 类 号：P228[天文地球—大地测量学与测量工程]