Open AccessUsing of Lattice Packing Theory for Determination of Clock Corrections for Precise Point Positioning Based on CDMA GNSS Signals
Author(s) -
А. А. Povalyaev,
A. A. Baburin,
A. N. Podkorytov
Publication year - 2021
Publication title -
raketno-kosmičeskoe priborostroenie i informacionnye sistemy
Language(s) - English
Resource type - Journals
eISSN - 2587-9057
pISSN - 2409-0239
DOI - 10.30894/issn2409-0239.2021.8.3.48.62
Subject(s) - precise point positioning , gnss applications , computer science , computation , satellite navigation , ambiguity resolution , algorithm , lattice (music) , graph theory , global positioning system , electronic engineering , mathematics , physics , telecommunications , engineering , combinatorics , acoustics
Using of lattice packing theory for computation of precise satellite clock corrections based on measurements from a ground network of GNSS CDMA signals (network solution) is considered. Advantage of lattice packing theory for this task solution in comparison with algebraic graph theory is described. Network solution based on of algebraic graph theory was considered in previous paper of the authors [3]. The precise satellite clock corrections are transmitted into the user receiver and applied to get the user coordinates with the errors usually not exceeding 1–3 cm. Ambiguity resolution of carrier phase measurements is used to get such precise satellite clock corrections; it leads to a considerable increase in positioning accuracy and a significant reduction of convergence time for user solution.