The Galileo second generation (G2G) design options

• Autorzy: Oszczak S.
• Języki publikacji: EN

Abstrakty

EN

The ESA’s Galileo Scientific Advisory Committee (GSAC) was involved in the proposals of the design of the Galileo second generation (G2G) space and ground segments in the view of potential scientific applications. Three main issues were identified by the GSAC as being of a particular interest for the system modernization: Inter-Satellite Links (ISL) for communication and ranging, precise time and frequency transfer concepts and on - board accelerometers on Galileo satellites. As it is shown, there is a considerable synergy to be expected when both ISL and on - board accelerometers could be implemented on G2G satellites, with remarkable operational and scientific advantages. Concerning the time transfer, the GSAC expresses the importance of the space clock performance requirements for the second generation Galileo satellites to achieve a high quality of navigation and timing signals. The GSAC also recommends to maintain a close link between the ESA, Galileo operations centers, and the time metrology community in Europe to ensure the quality of Galileo System Time (GST) and time dissemination to the public next to the Galileo positioning services.

Słowa kluczowe

EN

space scientific projects; Galileo navigation system; inter-satellite link; Galileo system time; on-board accelerometers

• Wydawca: Wydawnictwo Lotniczej Akademii Wojskowej
• Czasopismo: Zeszyty Naukowe / Wyższa Szkoła Oficerska Sił Powietrznych
• Rocznik: 2016
• Tom: Nr 4
• Strony: 135--142
• Opis fizyczny: Bibliogr. 7 poz., fig.

Twórcy

autor

Oszczak S.

• Polish Air Force Academy, Faculty of Aeronautics

Bibliografia

• 1. Delva P., Kostic U., and Cadez A., Numerical modeling of a Global Navigation Satellite System in a general relativistic framework. Advances in Space Research, 47:370–379, 2011. DOI: 10.1016/j.asr. 2010.07.007.
• 2. Delva P., Cadez A., Kostic U., and Carloni S., A dynamical reference system for science and navigation. Proceedings of the 3rd Int. Colloquium – Galileo Science, 2011.
• 3. Oszczak B., 2014, Solution for Inter-Satellite Linked Space-Time Network Using Reference and Transition Point Indicators, Proceedings of the 27th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2014), September 8-12, 2014, Tampa, FL, Pages: 2363-2370 Published: 2014.
• 4. [RD1] Some considerations on potential scientific applications of GNSS Inter-Satellite Links (ISL), TN presented to the GSAC14, May 2014.
• 5. [RD2] Advanced concepts for the Galileo time reference, TN presented to the GSAC14, May 2014.
• 6. [RD3] On-board Accelerometry on GALILEO Satellites, TN presented to the GSAC14, May 2014.
• On - line resources:
• 7. http://www.esa.int/Our_Activities/Navigation/The_future_Galileo/Launching_Galileo