位置基准的分布对GPS网优化设计的影响分析

首先简要介绍了GPS控制网的数据处理以及优化设计的分类与指标,接着主要针对GPS网中位置基准的分布对平差精度的影响进行了试验和分析,以CORS站的具体计算为例,得到一些有益的结论：IGS位置基准应尽量选择位于待求点周围且均匀分布的基准站,同时应多选择位于低纬度区域的基准站。

Impact analysis of position datum distribution on GPS network optimization design

The text briefly introduces GPS control network data manage and the categories and indicators of GPS control network optimization design at first,then the impact on positioning precision caused by selection method of distribution of position datum is studied through experimental and theoretical analysis,taking specific caculation of CORS as example,appropriate conclusions are obtained： IGS position datum stations around the unknown points and uniformly distributed should be chosen,stations located in low-latitude regions should be chosen.