DATA ANALYSIS OF THIRD-ORDER GPS GEODETIC NETWORK BY ADVANCED GPS REFERENCE POINT
利用高等级点加强三级GPS网的处理分析

The third-order GPS geodetic network is a long-term construction project of national basic surveying.Making full use of advanced GPS reference points of all kind of project can not only improve the accuracy but also accelerate the construction of the third-order GPS geodetic network.The calculating method based on advanced GPS reference points for the third-order GPS geodetic network is introduced and the data of an area is used as an example.