Optimal Estimation of the Earth Orientation Parameters Using VLBI

Details Optimal Estimation of the Earth Orientation Parameters Using VLBI Optimal Estimation of the Earth Orientation Parameters Using VLBI

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ivsg.conf..243p&link_type=abstract

International VLBI Service for Geodesy and Astrometry 2000 General Meeting Proceedings, edited by Nancy R. Vandenberg and Karen

Astronomy and Astrophysics

Astronomy

Scientific paper

A model of VLBI observables includes effects of geometry, environment of signal propagation and delays in the data acquisition system itself. Imperfection of the model of instrumental effects can be a considerable source of errors in the estimates of the targeted parameters. Two effects are considered in detail: spurious signals in phase calibration and instrumental polarization. Methods of their detection, evaluation and calibration are outlined. Influence of these effects on the final results is shown.

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