A Robust estimation method for orbit determination

Details A Robust estimation method for orbit determination A Robust estimation method for orbit determination

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005acasn..46..173w&link_type=abstract

Acta Astronomica Sinica, vol. 46, no. 2, p. 173-180

Astronomy and Astrophysics

Astronomy

2

Celestial Mechanics, Orbit Improvement, Robust-Estimation, Outliers

Scientific paper

The method of orbit improvement is studied through processing the simulated optical data of 20 satellites. The criterion of deletion makes the ratio of outliers to be less than 10% in most cases. After using Huber estimation twice, Hampel estimation is used to get the result when it converges. This method ensures the accuracy of orbit. The parameter C 0,C1 and C2 of Hampel estimation are deeply studied, and the result is: C0=2.2, C1=3.6, C2 changes with the value of single outliers.

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