jgg     2008 28 (5):  59-64    ISSN: 0412-1961  CN: 21-1139/TG SEQUENTIAL CHARACTERISTICS AND ACCURATE ESTIMATION OF CYCLE SLIPS IN HIGH ORDER DIFFERENTIAL Wang Aisheng 1,2,3) ; and Ou Jikun 1) 1) Key Laboratory of Dynamical Geodesy, Institute of Geodesy and Geophysics, CAS, Wuhan 4300772) School of Geodesy and Geomatic, Xuzhou Normal University, Xuzhou 2211163) The Graduate School of Chinese Academy of Science, Beijing 100049 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null