Abstract Differential code biases (DCB) are major source of errors in computing the total electron content (TEC) of the ionosphere from GPS measurements. Although instrumental satellite bias values are available from various International GPS Service (IGS) analysis centers, receiver biases are provided only for very few GPS stations. Some other methods are needed to solve receiver DCB values for plenty of other GPS stations. In this study, on the basis of the GPS code and phase observations in Jan. 2013 at IGS stations distributed in different latitudes, some effective methods are developed to estimate receiver DCB values for a single GPS station. It is shown that the differences between receiver DCB values estimated and those released by IGS are almost less than 1.5 ns, and monthly averages of the differences are below 1.0 ns for most receiver stations.
Fund:National Natural Science Foundation of China,No.41174024; Commonweal Research Project on Surveying and Geo-Informatics,No.201412017; Opening Project of Shanghai Key Laboratory of Space Navigation and Position Techniques,No.14DZ2276100.
Cite this article:
WU Jicang,ZHANG Zefeng,CHEN Junping. Methods for Estimation of Single Station Differential Code Biases by GPS Phase Observations[J]. jgg, 2016, 36(3): 235-238.
WU Jicang,ZHANG Zefeng,CHEN Junping. Methods for Estimation of Single Station Differential Code Biases by GPS Phase Observations[J]. jgg, 2016, 36(3): 235-238.