Optimization Method for Improving the Precision of Metro GNSS Data Processing
GNSS control survey provides high-precision primary control points for subway construction.This paper took Changsha Metro Line 7 as an example.In the process of GNSS data processing,the accuracy and reliability of GNSS control network can be significantly im-proved by using CORS Virtual Reference Station technology,selecting independent closed baselines,and using GAMIT software to calculate baselines.
GNSS data processingCORS Virtual Reference Stationindependent closed baselinesGAMIT
NETL
NSTL
万方数据
