jgg     2007 27 (1):  96-99    ISSN: 0412-1961  CN: 21-1139/TG ON REAL-TIME PRECISE ORBIT BIASES CORRECTION TECHNIQUE FOR GPS/VRS NETWORK Li Chenggang;Huang Dingfa;Zhou Dongwei;Zhou Letao;Xiong Yongliang; and Xu Rui The Center of Geomatic Engineering, Southwest Jiaotong University，Chengdu 610031 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null