jgg     2007 27 (2):  43-46    ISSN: 0412-1961  CN: 21-1139/TG CORRELATIONS AMONG PARAMETERS IN SEVEN-PARAMETER TRANSFORMATION MODEL Wang Jiexian 1,2) 1)Dept. of Surveying and Geomatics, Tongji University, Shanghai 2000922)Key Laboratory of Advanced Engineering Survey of SBSM, Shanghai 200092 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null