Geometry and treatment of fiducial networks - Effects on GPS baseline precision in South America

Details Geometry and treatment of fiducial networks - Effects on GPS baseline precision in South America Geometry and treatment of fiducial networks - Effects on GPS baseline precision in South America

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15.1467f&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 15, Dec. 1988, p. 1467-1469.

Physics

7

Celestial Geodesy, Geodetic Accuracy, Global Positioning System, Ground Stations, Very Long Base Interferometry, Covariance, South America

Scientific paper

A covariance analysis indicates that GPS baseline precision in northern South America is substantially improved when fiducial stations in North America are supplemented by stations in Hawaii, Australia, and New Zealand. The formal errors for a variety of fiducial networks are calculated. It is found that the systematic error of fiducial stations is dependent on the fiducial network geometry. Sensitivity analysis indicates that the baselines of northern South America are very sensitive to uncertainties in the locations of the closest fiducial stations.

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