Establishment and Accuracy Analysis of Satellite Positioning Control Network for Fuzhou Metro Line 4 Phase Ⅰ Project
This paper discusses the design,control point layout,data processing,result statistics analysis of the satellite positioning control network for Fuzhou Metro Line 4 Phase Ⅰ Project.It also compares the compatibility and stability of starting point during data post-process-ing.The method of connected observation of urban C-level and those control points in different lines is used to analyze the achievement ac-curacy,to ensure the precise connection of this network with local coordinate systems and other networks,and ultimately ensure the quality of results,improve measurement accuracy,and reduce costs while increasing efficiency.The study can provide valuable experience for other related construction projects.