State primary special standard of position coordinates GET 218-2022: the metrological characteristics study

Abstract

The paper considers positioning and timing as one of the common types of measurements in various radio navigation and radiolocation systems in the field of geodesy and radio communication. It is shown that an increase in the number of positioning and timing measuring instruments, as well as an increased level of requirements to the accuracy of user coordinate determinations has led to the relevance of developing the State primary special standard of position coordinates. The composition of the VNIIFTRI State primary special measurement standard of position coordinates GET 218-2022 is presented, which will allow providing the unity of coordinate and azimuth measurements, satellite geodetic and navigation equipment using the signals of global navigation satellite systems GLONASS, GPS, Galileo, BeiDou and ground augmentations. Metrological characteristics of GET 218-2022 in terms of storing absolute coordinates, reproducing/measuring unsolicited range by phases of distance code and carrier frequency, reproducing coordinates of global navigation satellite systems consumer, measuring coordinate increments into coordinate systems. The results of GET 218-2022 metrological characteristics research with regard to absolute coordinate storage and measurement of the consumer coordinate increments showed a comparable level of accuracy with the characteristics of the ITRS international system. Using GET 218-2022 it is possible to conduct tests of such prospective measuring instruments as high-precision pseudorange measuring systems, precision receivers of global navigation satellite systems in absolute/relative phase measurements mode.