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《Beijing Surveying and Mapping》 2018-10
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Analysis of Tropospheric Parameter Estimation in Data Processing of High-speed Railway CP0

KUANG Tuanjie;China Railway Design Corporation;  
GAMIT tropospheric delay parameter estimation in CP0 data processing of high-speed railway generally adopts piecewise linear method to correct tropospheric delay.Therefore,it is necessary to analyze the time interval of tropospheric parameter estimation for CP0 data processing.In order to analyze the reasonable time interval for parameter estimation,Baseline solution of high-speed railway control network under different data processing schemes using GAMIT10.60 and network adjustment using TGPPS,standardize the root mean square error,baseline repeatability,network adjustment,and other index for the results of precision analysis.The experimental results show that the tropospheric zenith delay estimation parameter data processing results are best at the 6 h interval,which is beneficial to improve the accuracy of the CP0 network adjustment of the framework control network.
【CateGory Index】: U212.2
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