000004206 001__ 4206
000004206 005__ 20190507101003.0
000004206 0247_ $$2DOI$$a10.1109/EFTF.2018.8409048
000004206 037__ $$aSCART-2019-0161
000004206 100__ $$aSignorile, Giovanna
000004206 245__ $$aGalileo and GNSS Time Offsets
000004206 260__ $$c2018
000004206 520__ $$aGalileo disseminates the GPS to Galileo Time Offset (GGTO) through the navigation message. This broadcast offset allows the user of a combined GSP/Galileo receiver to achieve a unique navigation solution by using measurements from both GPS and Galileo satellites. Nowadays, many positioning systems are available, the topic of interoperability is therefore crucial. The time offsets between the different systems should therefore be made available to the multi-GNSS users. An alternative would be that each constellation broadcasts only the time offset between its time scale and a reference common to all GNSS. In this paper we propose two alternative for, for this reference: either it can be based on the combination of the different GNSS time scales , or it can be directly UTC, as predicted and broadcast by the different systems. This paper presents a first assessment of the performances that can be achieved with each of these two approaches.
000004206 594__ $$aNO
000004206 700__ $$aSesia, Ilaria
000004206 700__ $$aDefraigne, Pascale
000004206 700__ $$aTavella, Patrizia
000004206 773__ $$c276-280$$pProceedings of the 32nd European Frequency and Time Forum$$y2018
000004206 8560_ $$fpascale.defraigne@observatoire.be
000004206 905__ $$apublished in
000004206 980__ $$aNONREF