Title: Research on the fitting methods of GPS precise ephemeris
Abstract: Considering with the need of quickly fitting of the precise ephemeris in the high-precision measurement,this paper made a deep research on methods of calculating the satellite 3D coordinates based on GPS precise ephemeris and procestang effects of two normal methods——Lagrange polynomial interpolation and Chebyshev polynomial fitting were analyzed and compared.The results gave the relationship between the rank code and the satellites position error after orbits fitting and showed that the Lagrange polynomial interpolation could be chosen as the best method of satellite orbit fitting.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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