jgg     2008 28 (5):  65-67    ISSN: 0412-1961  CN: 21-1139/TG RESEARCH ON ACCURACY TEST OF RTK-GPS DYNAMIC POSITIONING Qin Shiwei 1,2) ; Gu Chuan 1) ; and Pan Guorong 1) 1)Department of Surveying and Geo-Informatics, Tongji University, Shanghai 2000922)Department of Civil Engineering, Shanghai University, Shanghai 200072 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null