jgg     2009 29 (2):  111-114    ISSN: 0412-1961  CN: 21-1139/TG A NEW METHOD FOR GPS PRECISE EPHEMERIS INTERPOLATION Chen Peng; Chen Zhengyang; and Li Xiao School of Info-Physics and Geomatics Engineering, Central South University, Changsha 410083 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null