Title :
Efficient computation of the position, velocity and time estimation algorithm on a GNSS processor using interpolation
Author :
Tasdemir, E. ; Kurz, L. ; Noll, Tobias G.
Author_Institution :
Dept. of Electr. Eng. & Comput. Syst., RWTH Aachen Univ., Aachen, Germany
Abstract :
Computational load of a highly complex function can be reduced by generating precise samples and interpolating for the data points between the samples. In this paper, application of the polynomial interpolation to two performance critical sub-functions of the position, velocity and time estimation algorithm is studied, namely (1) computation of satellite position and clock correction for each satellite in line-of-sight and (2) corrections of atmospheric delays in the pseudo-ranges.
Keywords :
interpolation; polynomials; satellite navigation; GNSS processor; atmospheric delays; clock correction; data points; line-of-sight; polynomial interpolation; position estimation algorithm; satellite position; time estimation algorithm; velocity estimation algorithm; Clocks; Delay; Estimation; Interpolation; Polynomials; Satellite broadcasting; Satellites;
Conference_Titel :
Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing, (NAVITEC), 2012 6th ESA Workshop on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-2010-8
DOI :
10.1109/NAVITEC.2012.6423061
