4Schmid R, Mader G, Herring T. From Relative to Absolute Antenna Phase Center Corrections[OL]. http://www, igsws2004, unibe, ch/abstracts/Antenna_Effects, pdf, 2004.
5Schmid R, Steigenberger P, Gendt G, et al. Generation of a Consistent Absolute Phase Center Correction Model for GPS Receiver and Satellite Antennas [J]. Journal of Geodesy,2007,81(12):781-798.
6Marder G L. A Comparison of Absolute and Relative GPS Antenna Calibrations[J]. GPS Solutions, 2001,4(4) :37-40.
7Mader G L. GPS antenna calibration at the national geodetic survey[ J]. GPS Solutions, 1999,3 ( 1 ) :50 - 58.
8Braun J, et al. The dffect of antenna covers on GPS baseline solutions[ R]. UNAVCO report, University NAVSTAR Consortium, Bouider, 1997.
9Schmid R and M Rothacher. Estimation of elevation - dependent satellite antenna phase center vaviations of GPS satellites [ J ]. Journal of Geodesy, 2003, 77:440 - 446.
10Schmid R, et al. Absolute phase center corrections of satellite and receiver antennas [ J ]. GPS Solution, 2005, ( 9 ) : 283 - 293.
