Results 121 to 130 of about 436,322 (188)

Accuracy of GPS precise point positioning (PPP)

open access: yes, 2020
We tried to show how the accuracy of GPS varies with respect to observing sessionduration by using the method of GIPSY precise point positioning (PPP), and how the site?scoordinates latitude, longitude and ellipsoidal height are affected.We used eleven IGS sites scattered almost evenly across the earth. GPS data wereobtained from SOPAC archives at http:
openaire   +1 more source

Quality description in GPS precise point positioning

open access: yes, 2013
GPS processing, like every processing method for geodetic applications, relies upon least-squares estimation. Quality measures must be defined to assure that the estimates are close to reality. These quality measures are reliable provided that, first, the covariance matrix of the observations (the stochastic model) is well defined and second, the ...
openaire   +1 more source

Home - About - Disclaimer - Privacy