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The precision of Satellite Laser Ranging (SLR)
measurements has beenpromoted to the order of mm recently.
Though SLR is not so popular as GPS,itshigh precisionattracts
the attention of researchers in the fields of geodesyand
geodynamics. Its applications include not only the absolute
positioning ofstation, the detection of position change, the
generation of global referenceframes,but also the solutions of
earth rotation parameters and earth''''s gravityfield coefficients,
as well as the researches for solid earth tide,ocean tidesand
satellite orbit determination. The most important mission in
geodesy is todetermine the positions of control stations. SLR
can offer accurate absolutecoordinates of stations in
reference to the earth center. With thiscontribution, we
can establish a reference frame relative to the earth center,
which is the base for other related researches and applications.
This thesis uses SLR data acquired in 1994 from the two GPS
satellitesnamed GPS35 and GPS36, mounted with retro-
reflectors. There are 2000observations from 13 stations.
With the IGS precise ephemeris of GPSsatellites, the
orbit is fixed and not adjusted. Under the above condition,the
absolute coordinates of stations are calculated. During the
calculationprocedure, atmospheric refraction correction, center
of mass correction, solidearth tide correction, ocean loading
correction, earth rotation correction,and station eccentricity
correction are taken into account. The comparison ofthe
experiment results and the absolute coordinates of stations
published bythe IERS shows that most coordinate differences are
within ±10 cm, and abouthalf of them within ±6 cm. Except for
3 stations with very few observations,the coordinate standard
deviation for each station is approximately within ±5cm. The a
posteriori standard deviation of unit weight for most stations
iswithin ±10 cm, except for one station about ±15 cm;
furthermore, half of thestations have values within ±5 cm.
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