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.
出处
《测绘科学》
CSCD
北大核心
2014年第2期27-31,共5页
Science of Surveying and Mapping
