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《Journal of Beijing University of Aeronautics and Astronautics》 2008-01
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On-the-fly ambiguity resolution by restricting coordinates predicted by Doppler

Chai Yanju Ou Jikun Yuan Yunbin Liu Genyou(Institute of Geodesy and Geophysics,Key Laboratory of Dynamical Geodesy,Chinese Academy of Sciences,Wuhan 430077,China)  
The main difficulty of kinematic positioning using carrier phase observations is the ill-posed problem of normal matrix.The float ambiguity and its covariance matrix are inaccurate,so impact the success rate of ambiguity resolution.A new method was put forward for resolving the ill-posed problem in kinematic positioning by restricting the coordinates predicted by Doppler observations.The float ambiguity and its covariance matrix were improved because the coordinates predicted by Doppler were more accurate than that determined by pseudo-range observations,so the success rate of ambiguity searching was advanced.The results indicate that the effect of the new method for on-the-fly ambiguity resolution of the short baseline is clear.
【Fund】: 山东省基础地理信息与数字化技术重点实验室开放基金资助项目(SD060811);; 国家自然科学基金资助项目(40474009 40674012 40625013);; 中科院动力大地测量学重点实验室基金资助项目(L06-09)
【CateGory Index】: P228.4
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