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《Geotechnical Investigation & Surveying》 2012-01
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A study of single epoch ambiguity solution in short baseline

Kong Lingjie 1,Dang Xinghai1,Wang Li2,Zhang Xiuxia1(1.College of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China; 2.College of Geology Engineering and Geomatic,Chang'an University,Xi'an 710054,China)  
Setting search space of single epoch ambiguity too bigger or too smaller,may result in low efficiency or inability to get the correct ambiguity,so a more credible and easy access of initial phase ambiguity solution in any single epoch will greatly improve the search efficiency and reliability.This contribution uses Melbourne-Wübbena and Geometry-Free combination observation to obtain the initial phase ambiguity and we put forward a new kind of single ambiguity search method using the ratio of the phase ambiguity residuals and the arccosine of the Mader functions of the best ambiguity and second best ambiguity as the conditional judgment.Result shows that the new method improves the efficiency and success rate of ambiguity fixing and provides a new method of real-time data processing for dynamic monitoring.
【Fund】: 国家自然科学基金项目(40902081 40672173 40802075)
【CateGory Index】: P228.4
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