jgg     2013 33 (5):  86-90    ISSN: 0412-1961  CN: 21-1139/TG COMPARISON BETWEEN QIF AND MW FOR AMBIGUITY  DECOMPOSITION 1）China Luoyang Electronic Equipment Test Center, Luoyang 471003 2)College of Navigation and Aerospace Engineering, Information Engineering University, Zhengzhou 450052 3）Xi’an Research Institute of Surveying and Mapping, Xi’an 710054 Received: 2013-01-04  Revised: null  Online: 2013-10-13 Supporting info