An Approach of Tropospheric Correction for VLBI Phase-Referencing using GPS Data

Details An Approach of Tropospheric Correction for VLBI Phase-Referencing using GPS Data An Approach of Tropospheric Correction for VLBI Phase-Referencing using GPS Data

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008chjaa...8..127z&link_type=abstract

Chinese Journal of Astronomy and Astrophysics, Volume 8, Issue 1, pp. 127-132 (2008).

Astronomy and Astrophysics

Astrophysics

Scientific paper

The dominant source of error in VLBI phase-referencing is the troposphere at observing frequencies above 5 GHz. We compare the tropospheric zenith delays derived from VLBI and GPS data at VLBA stations collocated with GPS antennas. The systematic biases and standard deviations both are at the level of sub-centimeter. Based on this agreement, we suggest a new method of tropospheric correction in phase-referencing using combined VLBI and GPS data.

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