Abstract:We propose a new method called differential positioning based on grid virtual reference stations to improve the security of the coordinates of the national geodetic control points. In this method, we select the points intersected by the longitude and latitude as the virtual reference stations, integrate pseudo-range correction of the virtual reference stations by the physical reference stations, broadcast the coordinates and the pseudo-range correction of the virtual reference stations, and calculate the users’ positions. Experimental results show that the new method achieves accuracy to the decimeter-level, which is almost equal to the pseudo-range differential positioning based on multiple reference stations.
CHEN Zhen,BEI Jinzhong,WANG Quan et al. Method of Pseudo-Range Differential Positioning Based on Grid Virtual Reference Stations[J]. jgg, 2016, 36(3): 221-225.