Analysis About the Impacts of the Theodolites Distribution to the Two Stations Intersection Measurement

Firstly, this chapter introduces the commonly used L formula and its improved intersection measurement in the range. In order to analyze the impacts of the theodolites distribution on the two stations’ intersection measurement, four stations and an ideal track are set in this chapter. Through the simulation analysis, two cases of the two stations’ intersection measurement errors are obtained: one case is when the two stations are located on the same side of the track, and the other case is when the two stations are located on the opposite sides. Moreover, the cause of the different error cases is analyzed and detailed comparison between them is made. All the observations above provide technical support to the reliability of real-time data analysis and the outside measurement data post-processing analysis, which is of great significance to the theodolites distribution in the project.