CGGTTS-Version 2E :
an extended standard for GNSS Time Transfer
Abstract
The standard for GNSS time transfer was first defined in 1984, associated to the use of GPS
signals, which were at that time degraded by the Selective Availability. It was updated at a few
instances to follow the evolution of GPS, of the receivers, and the inclusion of GLONASS. With
the emergence of additional navigation systems like Galileo, BeiDou, QZSS, the standard has to
be further adapted. This paper prepared by the CCTF Working Group on GNSS Time Transfer
details the associated extended standard, named CGGTTS for Common GNSS Generic Time
Transfer Standard, and the corresponding Version 2E of the format1
.