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Information × Registration Number 0214U001164, 0113U002710 , R & D reports Title Experimental adjustment of hardware and software means of gathering, processing and analysis of observations of the network of the Ukrainian GNSS ground-based permanent reference stations for estimation and modelling of ionospheric delay components popup.stage_title Head Zhalilo O.O., Кандидат технічних наук Registration Date 22-01-2014 Organization Main Astronomical Observatory popup.description2 At the given stage there were solved the following tasks: there were carried out gathering and processing of GNSS observations of selected stations of Ukraine (~ 40 stations); for TEC modelling there were used the observations accumulated in the period of four days (in 2013); by use of the domestic software complex "OCTAVA" it was carried out the modification of the algorithms and software for a) carrier-phase ambiguity resolution (CPAR) of GNSS stations network measurements and estimation of their coordinates on the baselines ~ 300-1000 km, b) estimation of zenith tropospheric delays (ZTD) and linear combinations of the ionospheric delays on all the baselines of GNSS network by daily seasonal samples; it was carried out the verification of coordinate solutions using the scientific software complex "BERNESE v. 5.1" (Switzerland); there were developed the algorithms for TEC modelling by use of the linear combinations of carrier-phase GNSS observations; for the purpose of formation of a trend 2D-model it was used "thin layer" model and expression of the spatial-temporal TEC distribution in the form of spherical functions of 3-5-th order and degree; there were obtained the results of estimation of the ionospheric delays in winter and summer periods of observations; the verification of solving the task of TEC modelling was carried out by means of comparison with the global model GIM IONEX (IGS). The realization of the given work will allow implementing a number of important activities and tasks of the State target scientific and technical space Program of Ukraine for 2013-2017, in particular, researching the scientific space experiment "Ionosat-Micro and carrying out the scientific program specified in the experiment. Product Description popup.authors Ємець А.І. Безсонов Є.А. Діцький І.В. Жаліло О.О. Желанов О.О. Хода О.О. popup.nrat_date 2020-04-02 Close