Page 49 - 卫星导航2021年第1-2合期
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Du et al. Satell Navig             (2021) 2:3                                           Page 16 of 22






























              Fig. 4  PPP positioning errors (after convergence) with the “Simple FDE” and “Advanced FDE” in PPP‑Wizard. Note the impact of undetected faults
              and wrong exclusions can be seen in a
























                                                               Fig. 6  PPP positioning errors (after convergence) with the Chi‑square
              Fig. 5  Chi‑square test statistics for code and carrier‑phase   test based FDE; P  = 0.01
                                                                          FA
                                      = 0.01
              measurements for fault detection; P FA
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