jgg     2009 29 (5):  76-80    ISSN: 0412-1961  CN: 21-1139/TG AN APPROACH OF SUBAVERAGE JOINT COMPUTATION FOR AUTO RESTORING GPS PHASE CYCLE SLIP Yang Rengui;Ou Jikun ;and Yuan Yunbin Institute of Geodesy and Geophysics，Chinese Academy of Sciences，Wuhan 430077 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null