3SARDON E, RIUS A, ZARRAOA N. Estimation of the Transmitter and Receiver Differential Biases and the Ionospheric Total Electron Content from Global Positioning System Observations [J]. Radio Science, 1994, 29 (3) : 577-586.
4ZHANG B C. Determination of Un differenced Atmospheric Delays for Network-based RTK [C]// Proceedings of Institute of Navigation GNSS 2009. Savannah:[s. n.] 2009:2727 -2738.
5DOW J M, NEILAN R E, GENDT G. The International GPS Service (IGS) : Celebrating the 10th Anniversary and Looking to the Next Decade [J].Advances in Space Research, 2005, 36(3): 320-326.
6BRUNNER F K, GUM. An Improved Model for Dual Frequency Ionospheric Correction of GPS Observations [J].ManuscriptaGeodaetica, 1991, 16 (3): 205-214.
7BRUNNINI C, AZPILICUETA F J. Accuracy Assessment of the GPS-based Slant Total Electron Content[J]. Journal of Geodesy, 2009, 83(8): 773- 785.
8CIRAOLO L, AZPILICUETA F J, BRUNNINI C, et al. Calibration Errors on Experimental Slant Total Electron Content (TEC) Determined with GPS [J]. Journal of Geodesy, 2007, 81(2): 111-120.
9KOUBA J, HEROUX H. Precise Point Positioning Using IGS Orbit and Clock Products[J].GPS Solutions, 2001, 5(2) : 12-28.
10ZHANG X H, FORSBERG R. Assessment of Long range Kinematic GPS Positioning Errors by Comparison with Airborne Laser Altimetry and Satellite Altimetry [J]. Journal of Geodesy, 2007, 81(3): 201-211.