ADJUSTMENT METHOD AND RESULT OF "NATIONAL 2000' GPS CONTROL NETWORK
Tang Yingzhe, Yang Yuanxi and Song Xiaoyong (Xi'an Research Institute of Surveying and Mapping,Xi'an\ 710054)
The nationwide GPS geodetic networks constructed from 1991 through 2001 is discribed in this paper. The importance of constructing the "National 2000' GPS Control Network" by combining the Crustal Movement Observation Network of China is emphasized. The adjustment method and the results of the unified National GPS control network is presented in detail.