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- W2350382451 abstract "The observational equation of traditional dynamic method is linearized with respect to the satellite orbit integrated from the 6 initial orbit parameters and the given force model.This paper derives the observation equation linearization with respect to the kinematic orbit determined with GNSS observations;therefore its linearization error is not correlated to orbit arc length,and the initial orbit parameters and initial gravity field model are no longer needed.The correspondent expressions are derived for recovering the Earth′s gravity field from kinematic orbit.The earth′s gravity field model TJGRACE01S up to 90 degree and order is computed with RL02 orbit data of whole 2008 by using the developed approach.The recovered model is analyzed by comparing with the existent models with respect to EGM2008 model,the results show that the cumulative geoid height error of the model TJGRACE01S is 17.6 cm,which is more accurate than EIGEN-CHAMP03S and EIGEN-CHAMP05S,and TJGRACE01S′s coefficient accuracy as a whole is better than EIGEN-GRACE01S in the leading 27 degrees,and is almost the same as EIGEN-GRACE02S in the leading 15 degrees.The analyzed results using 8221 GPS leveling data of the USA demonstrate that the TJGRACE01S is also better than EIGEN-CHAMP03S and EIGEN-CHAMP05S." @default.
- W2350382451 created "2016-06-24" @default.
- W2350382451 creator A5063626071 @default.
- W2350382451 date "2013-01-01" @default.
- W2350382451 modified "2023-09-23" @default.
- W2350382451 title "Linearization method of recovering Earth′s gravity field with respect to gravity satellite′s kinematic orbits" @default.
- W2350382451 hasPublicationYear "2013" @default.
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