Evaluation of the Precision of Three Tropospheric Delay Correction Models

Details Evaluation of the Precision of Three Tropospheric Delay Correction Models Evaluation of the Precision of Three Tropospheric Delay Correction Models

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cha%26a..32..429q&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 32, Issue 4, p. 429-438.

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using the annual GPS observational tropospheric zenith delay data and meteorological data obtained at 36 globally distributed IGS stations in 2003, we have estimated the accuracy and range of application of two often-used models of tropospheric delay correction (the Hopfield and Saastamoinen models), and of a more recent model (the EGNOS model). We point out some defects in the Hopfield model and show that the EGNOS model can be used as the correction model of the tropospheric zenith delay for the GNSS real-time positioning and navigation.

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