大规模基准站网子网划分与公共站选取方法研究

Research on the Sub-Network Division and Common-Station Selection Methods of Large-Scale GNSS Reference Station Network Data Processing

摘要: 对于大规模GNSS基准站网的数据处理，目前存在着分子网解算和全网整体解算两种不同的处理策略。本文从IGS分析中心SIO采用的分子网解算策略出发，利用实际数据，通过不同子网划分、不同公共站选取方法进行处理并加以对比分析，得出了子网划分及公共站选取对最终解算精度的影响量级，提出了子网划分与公共站选取的一般性原则，对大规模GNSS基准站网数据处理策略提出了建议。

Abstract: As for data processing of large-scale GNSS reference station network, there are two different pro- cessing strategies, resolution by sub-network or by the whole network. On the basis of the sub- network approach adopted by the IGS Analysis Center SIO, we process the actual data by different division of sub-network together with different selection methods of common stations, then carry out comparative analysis on them, yielding influence levels of the two different aspects on the final resolution precision. Afterwards, we propose a general principle of sub-network division and common station selection. At the end of this paper, we put forward suggestions on the data pro- cessing of large-scale GNSS reference station network.