The gAGE research group was created at the Technical University of Catalonia (UPC) in 1987. Initially registered as the Research group of Astronomy and Galactic Dynamics, it was renamed as Research group of Astronomía i Geodesia Espacial  (gAGE) in 1994, and as Research group of Astronomy and GEomatics (gAGE) in 1998.
In the nineties most of the research group activities were oriented to GNSS in collaboration with Dr. Antoni Rius from CSIC until 1997, and with the incorporation of Dr. Manuel Hernández Pajares in 1990 as a gAGE staff until 2013. In 2009, the company gAGE-NAV, S.L. was created as an University Spin-off of gAGE/UPC.

The activity portfolio of gAGE in GNSS includes new algorithms for Wide Area navigation and Fast Precise Point Positioning at the centimetre-level of accuracy using GPS/Galileo signals, SBAS and GBAS studies, and precise Ionospheric and tropospheric sounding. Educational activities include GNSS teaching at different University levels (undergraduate, Master and PhD).

Other activities developed by gAGE members are in the field of Astronomy and Galactic Dynamics.

gAGE research group is coordinated by Prof. Dr. Jaume Sanz Subirana and Prof. Dr. José M. Juan Zornoza.

gAGE/UPC University Research Group


Jordi Girona 1-3
C3 Building, 08034 Barcelona.
41° 23' 19.0536" N, 2° 6' 42.8256" E


gAGE/UPC vancancy offer for GNSS predoctoral position


gAGE/UPC offers a 3 years Pre-Doctoral Fellowship to conduct research into the GNSS High Accuracy Navigation and Earth Observation domains. During this 3 years period the candidate shall complete his PhD dissertation.

gAGE/UPC is the organizer of the GNSS Excellence Week 2016


Next 19th to 21st of January 2016, the Universitat Politècnica de Catalunya will organize the “GNSS Excellence Week” in Barcelona, in the context of the European H2020 project “EGNSS knowledge triangle“ (e-KnoT).

gAGE/UPC is the local organizer of the ESA/JRC INTERNATIONAL SUMMER SCHOOL ON GNSS 2015


The objective of the Summer School is to provide the attendees with a comprehensive overview on satellite navigation, starting from the structure of Global Navigation Satellite Systems (GNSS), their signals, the processing of observations in a GNSS receiver and finally the determination of the user Position Velocity and Time (PVT) solution.

GNSS Education Network for Industry and Universities (GENIUS)

GENIUS - ESNC University Challenge 2012


The European Satellite Navigation Competition (ESNC) values innovation, especially when it comes to new business ideas involving satellite navigation. This is why it wants to give you the opportunity to present and promote your idea - and eventually put it into practice.

Wide-Area RTK

Wide-Area RTK (WARTK)

Method and system for real time navigation using satellite transmitted three-carrier radio signals and ionospheric corrections 


gAGE/UPC projects on GNSS

The R+D+i projects of gAGE/UPC on GNSS are provided in this section.

It includes a Project server (password protected) with the reports and working files available for the different partners.

Peer Reviewed Papers on GNSS


From 1994 to 2012, the three members of gAGE/UPC, Manuel Hernandez Pajares, Jose Miguel Juan Zornoza and Jaume Sanz Subirana, were developing its research activities together. This involved the development of a number techniques (algorithms and related software) in the  field of satellite navigation (GNSS) and their applications.

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