Abstract Focusing on the coordinate time series of 5 IGS reference stations in China mainland（WUHN、BJFS、URUM、KUNM、SHAO） during 2012 under ITRF 2008, coordinate time series was calculated by software TriP, gross error was removed by an improved grossremoving method, and noise as well as periodical analysis had been implemented using different noise model combination.Meanwhile，the experimental results were compared with the results calculated by GAMIT/GLOBK. Conclusion is drawn that noise model of IGS station coordinate time series in China mainland contain a trend and periodical movement, and optimal noise model is different from each others. The optimal noise model of URUM, KUNM, BJFS, SHAO stations is BPPL+WN, the optimal noise model of WUHN is BPPL+WN, FN+WN, PL+WN in N, E, U direction. White noise, which is still the main part during optimal noise models is BPPL+WN, is generally greater than 2 mm. BPPL, which is only about one tenth WN component, is between 0.28 mm to 0.89 mm. Besides, noise component of coordinate time series calculated by GAMIT/GLOBK is less than the results calculated by TriP, stations’ optimal noise models calculated by two different softwares are not exactly the same.
Lu Qi,Zhang Xiaohong. SPECTRAL ANALYSIS OF COORDINATE TIME SERIES
OF PRECISE POINT POSITIONING OF IGS REFERENCE
STATIONS IN CHINA MAINLAND[J]. jgg, 2014, 34(5): 64-69.
Lu Qi,Zhang Xiaohong. SPECTRAL ANALYSIS OF COORDINATE TIME SERIES
OF PRECISE POINT POSITIONING OF IGS REFERENCE
STATIONS IN CHINA MAINLAND[J]. jgg, 2014, 34(5): 64-69.
