jgg     2012 32 (4):  139-143    ISSN: 0412-1961  CN: 21-1139/TG INVESTIGATION ON CHARACTERISTICS OF RECEIVER’S INITIAL PHASE BIAS CHANGE Zheng Bin; Wu Shunxiao; Liu Zengjun; and Ou Gang Satellite Navigation R&D Center, School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null