JSC "Russian Space Systems" (RKS, part of the State Corporation "ROSCOSMOS") has completed the formation of the ground infrastructure of a high – precision complex of wide-band functional additions to global navigation satellite systems based on the development of the differential correction and monitoring system (SDCM) - a network of 53 unified measurement collection stations (USSI) has been created.
The network of stations is designed to receive information from navigation satellites, as well as to process and provide corrective data to consumers in Russia and the CIS countries. A total of 46 stations have been placed on the territory of Russia, 18 of which are located at the facilities of branches of PJSC Rostelecom, the last station of the ground infrastructure recently started working in Yekaterinburg. Another 4 stations were built in the CIS countries and 3 in Antarctica.
The high-precision complex of wide-band functional complement of global navigation satellite systems was created by order of the State Corporation "ROSCOSMOS" and is an important element of improving the accuracy of the GLONASS system . All navigation information received by the stations is transmitted to the processing centers.
Vladimir DENEZHKIN, Deputy General Designer for Ground Systems and Civil Complexes of the RCS:
USSI receives open GLONASS radio navigation signals, signals from foreign navigation satellite systems and provides consumers with additional information that allows them to improve the accuracy and reliability of determining the speed of movement, the accuracy of time reference, as well as spatial coordinates. The output information is delivered to consumers via special channels via geostationary communication satellites and via the Internet. The stations are provided with uninterruptible power supply systems and can operate offline for a long time.
Satellite systems of differential corrections SBAS (Space Based Augmentation Systems), which include the Russian SDCM, are actively developing all over the world today. There are four foreign operating systems of this type-WAAS (USA), EGNOS (Europe), MSAS (Japan), GAGAN (India), but only the Russian one simultaneously works with data from GLONASS and GPS, the rest are focused only on GPS.
SBAS are designed to improve the accuracy and integrity of determining the location of spacecraft in orbit, air and sea vessels, and land consumers with open-access navigation radio signals.
The greatest development of SBAS has been in aviation, several thousand airfields around the world are already equipped with such a system. It complements traditional navigation tools and allows you to perform all operational operations, including accurate landings with lateral and vertical guidance.
It is expected that the introduction of high-precision positioning in Russia and the CIS countries will give an additional incentive to the development of GLONASS-based technologies in such industries as construction, agriculture (precision farming) and transport, as well as serve to improve the safety of aircraft flights.
