jgg     2013 33 (1):  137-140    ISSN: 0412-1961  CN: 21-1139/TG PWV INVERSION BASED ON CNES REAL-TIMEORBITS AND CLOCKS Wang Min1) ; Chai Hongzhou1) ; Xie Kai1) ; and Chen Yanli2) 1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052;2)68011 Troops of PLA, Lanzhou 730020 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null