Coordinate System Conversion of GPS Control Network on Surface Movement Observation Station Based on the Robust Estimation
Hang Yu-f · Beijing Surveying and Mapping · 2013
For monitoring the law of ground movement and deformation casued by Panyi east 1252(1)first mining face, layouting the surface movement observation that consists of 1entire trend line and 1full orientation observation line,12 control points and 186monitoring point station.GPS positioning technique was used on measuring plane connected survey, in order to overcome the influence of existing converte datum transformation in solving conversion parameter,it adopted the robust estimation theory and established the quality evaluation model of the GPS network after convering.According to the outcome of analysis and processing on GPS plane control network,it adopted robust estimation to solve parameters and retained the characteristics of high precision GPS technology.