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Information × Registration Number 0208U000306, 0107U006821 , R & D reports Title Informational-positioning GNSS system and network VRS-technology for geodetic and cadastral surveying assistance in Transcarpathian and Chernigov Regions popup.stage_title Head Yatskiv Ya.S., Registration Date 23-01-2008 Organization Main Astronomical Observatory popup.description2 The research pilot project is directed on the implementation of the modern satellite technologies of high precision positioning for geodetic and cadastre survey, support of the land management in Ukraine. The prototype of informational and positioning satellite GPS/GNSS system is created and experimentally verified. It realizes the principles of network (zone) differential VRS error corrections of satellite observations and grants of information services (raw measuring information, differential corrections, etc.) on all territory of served region. The system includes the subsystems of base stations network, gathering and accumulation of the data, processing of observations (post-processing mode), dissemination of real time DGPS/RTK of corrections using NTRІP technology, user's hardware/software means for data exchange with the processing center by use of GSM/GPRS mobile communication and reception of DGPS/RTK corrections. With use of the real measuring information of GPS/GNSS stations network (Kiev, Chernigov, Priluki of the Chernigov region) and users GPS observations the experimental tests are carried out. It is shown that in an operative range of the GPS/GNSS network with the baselines 130-150 km is achieved centimeter/sub-decimeter accuracy of positioning (using both single- and dual-frequency user GPS receivers) in a mode of post-processing. The hardware-software complex of real time transfer of the differential DGPS/RTK corrections through ІNTERNET is developed. Using DGPS/RTK mode of positioning users can carry out geodetic RTK surveying with the accuracy of 2-5 cm in the radius of 20 km around the nearest GPS base station.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close