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## Problematic Issues of the Global High-Precision PNT Service in Real Time Mode

Transactions of IAA RAS, issue 35, 53–59 (2015)

Keywords: global navigation satellite system, global system for precise evaluation of the navigation and ephemeris-and-timing information in real time, accuracy of ephemeris and time information, global network of measuring stations, precise point positioning in real time, control of the accuracy characteristics of ephemeris and time information.

### Abstract

A global high-precision system (HPS) for obtaining the navigation and ephemeris-and-time information (ETI) in real time is being created following the Federal Target Program (FTP) “Maintenance, Development and Use of the GLONASS System from 2012 to 2020”. It is designed to provide user precise navigation in real time absolute mode, to solve the positioning-and-timing tasks in a posteriori mode according to signals of GLONASS and other global navigation satellite systems (GNSS) deployed, and to provide the GLONASS control and data confirmation systems with basic information in order to fulfil targets both in real time and in a posteriori mode. HDS of ETI must achieve the most important FTP’s targets and figures. The system should calculate the ETI with accuracy at the centimeter level: 5 cm in real-time and 3 cm in a posteriori mode. It is justified the creation of a global network of Russian stations abroad to achieve the specified ETI accuracy. Problematic issues are: to choose the strategy of placement and deployment stages for the network’s measuring stations on the foreign territory; to start using the Integer PPP technology instead of the Float PPP technology; to work out corrections of the onboard clock for each of the GNSS navigation signal frequencies and to organize an independent instrumental precision control of the ephemeris-and-timing data calculated.

### Citation

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V. F. Braginets, A. N. Zhukov, V. V. Pasynkov, A. A. Fedotov. Problematic Issues of the Global High-Precision PNT Service in Real Time Mode // Transactions of IAA RAS. — 2015. — Issue 35. — P. 53–59. @article{braginets2015, abstract = {A global high-precision system (HPS) for obtaining the navigation and ephemeris-and-time information (ETI) in real time is being created following the Federal Target Program (FTP) “Maintenance, Development and Use of the GLONASS System from 2012 to 2020”. It is designed to provide user precise navigation in real time absolute mode, to solve the positioning-and-timing tasks in a posteriori mode according to signals of GLONASS and other global navigation satellite systems (GNSS) deployed, and to provide the GLONASS control and data confirmation systems with basic information in order to fulfil targets both in real time and in a posteriori mode. HDS of ETI must achieve the most important FTP’s targets and figures. The system should calculate the ETI with accuracy at the centimeter level: 5 cm in real-time and 3 cm in a posteriori mode. It is justified the creation of a global network of Russian stations abroad to achieve the specified ETI accuracy. Problematic issues are: to choose the strategy of placement and deployment stages for the network’s measuring stations on the foreign territory; to start using the Integer PPP technology instead of the Float PPP technology; to work out corrections of the onboard clock for each of the GNSS navigation signal frequencies and to organize an independent instrumental precision control of the ephemeris-and-timing data calculated.}, author = {V.~F. Braginets and A.~N. Zhukov and V.~V. Pasynkov and A.~A. Fedotov}, issue = {35}, journal = {Transactions of IAA RAS}, keyword = {global navigation satellite system, global system for precise evaluation of the navigation and ephemeris-and-timing information in real time, accuracy of ephemeris and time information, global network of measuring stations, precise point positioning in real time, control of the accuracy characteristics of ephemeris and time information}, pages = {53--59}, title = {Problematic Issues of the Global High-Precision PNT Service in Real Time Mode}, url = {http://iaaras.ru/en/library/paper/1062/}, year = {2015} } TY - JOUR TI - Problematic Issues of the Global High-Precision PNT Service in Real Time Mode AU - Braginets, V. F. AU - Zhukov, A. N. AU - Pasynkov, V. V. AU - Fedotov, A. A. PY - 2015 T2 - Transactions of IAA RAS IS - 35 SP - 53 AB - A global high-precision system (HPS) for obtaining the navigation and ephemeris-and-time information (ETI) in real time is being created following the Federal Target Program (FTP) “Maintenance, Development and Use of the GLONASS System from 2012 to 2020”. It is designed to provide user precise navigation in real time absolute mode, to solve the positioning-and-timing tasks in a posteriori mode according to signals of GLONASS and other global navigation satellite systems (GNSS) deployed, and to provide the GLONASS control and data confirmation systems with basic information in order to fulfil targets both in real time and in a posteriori mode. HDS of ETI must achieve the most important FTP’s targets and figures. The system should calculate the ETI with accuracy at the centimeter level: 5 cm in real-time and 3 cm in a posteriori mode. It is justified the creation of a global network of Russian stations abroad to achieve the specified ETI accuracy. Problematic issues are: to choose the strategy of placement and deployment stages for the network’s measuring stations on the foreign territory; to start using the Integer PPP technology instead of the Float PPP technology; to work out corrections of the onboard clock for each of the GNSS navigation signal frequencies and to organize an independent instrumental precision control of the ephemeris-and-timing data calculated. UR - http://iaaras.ru/en/library/paper/1062/ ER -