референцні станції

The aim of the research is to diagnose the metrological characteristics of high-precision GNSS-observations by methods of non-classical error theory of measurements (NETM) based on Ukrainian reference stations. Methodology. We selected 72 GNSS reference stations, downloaded daily observation files from the LPI analysis center server, and created time series in the topocentric coordinate system. The duration of the time series is almost two years (March 24, 2019 - January 2, 2021).

We suggest using the method macromodelling to study dynamic changes of coordinates of reference stations. This method is good enough to determine the effect of ionosphere on the accuracy of GPS-coordinates of stations. For example, used a network of stations ZAKPOS. The main goal of our work was to study the best way is optimal for accurate positioning of the reference station network.

Purpose. This study assumed: experimental determination of the accuracy of coordinates of points of the geodetic network dual-frequency GNSS receivers from different manufacturers under different conditions of observations using RTK-technology; study connectivity and receiving a fixed solution RTK mode with extra-long bases (200 km). Methods. To investigate the accuracy of the coordinates in the experimental work were involved six surveying crews ukomplektovuvalysya six receivers of different manufacturers.

Purpose. The purpose of this work is to study the possibility of restoring urban traverse networks using high-precision technologies in satellite mode, real-time kinematics. Method. To achieve this goal were involved surveying six teams that were equipped with six receivers of different manufacturers. The observations were made as the "static" and in RTK-mode, and, determining the coordinates of points traverse the network Chernihiv mode performed by permanent RTK networks with different configurations and mount points.

The main goal of our research was to estimate the accuracy regional combined GNSS solution by changing the duration of observations and configuration of the reference stations network. Methods. As the initial date for investigation were the results of 4 weeks from 119 reference stations in Ukraine. These results of observation were used for design four networks with different sets of reference stations and for each network was calculated the combined solutions.

Purpose. The purpose of this work is to study the effectiveness of using satellite technology in real-time kinematics mode for work performed to determine the areas of land of different size within a settlement. Methodology. To realize this рurpose we have conducted experimental research on satellite observation points and triangulation of polygonometry in Chernihiv and the region. During the research it was assumed to get the control coor¬dinates on the basic points from static observation.