jgg     2013 33 (1):  123-127    ISSN: 0412-1961  CN: 21-1139/TG ANALYSIS OF THERE ALGORITHMS OF ATTITUDEDETERMINATION BASED ON TWO BASELINES Liu Xiaohui1); Dang Yamin1) ; Wang Qianxin1) ; and Yang Lei2) 1) Chinese Academy of Surveying and Mapping, Beijing 100830;2) Shandong University of Science and Technology, Qingdao 266510 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null