Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 2
Written by Sebastian CIUBAN
The aim of this paper is to compare the position of a certain GNSS satellite with respect to an ECEF (Earth Centered Earth Fixed) frame, obtained from broadcast ephemeris and precise post-processed orbits. To accomplish this, RINEX (Reciever Independent Exchange Format) and SP3 (Standard Product) files were downloaded from the International GNSS Service (IGS) corresponding to the same day. Furthermore, in order to assess the error of the broadcast ephemeris, several routines were developed under MATLAB environment, with the aim of importing the data, comparing the orbits and plotting the results.
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