The introduction of ITRF2020 in global positioning applications

With the integration of positioning solutions into mass-production autonomous driving systems, together with the ever-increasing demand for global positioning applications the use of a global reference frame is now a requirement that global correction service providers need to support and deliver, whilst still maintaining support of local (regional) official reference frames. To maintain high precision of the GNSS network we perform a daily solution, which is computed based on precise orbits and following the guidelines of the EPN Analysis Centres. Using the daily solutions, we are estimating the linear velocity of reference stations within GNSS networks and are also considering jumps due to equipment changes. The estimated velocities give the opportunity to monitor the long-term stability of the network as well as the quality of reference station coordinates. The transition between ITRF2014 and ITRF2020 on a large GNSS reference stations worldwide, including the computation of the HxGN SmartNet GNSS network consisting of more than 5300 GNSS reference stations, will be investigated to evaluate the impact that this could have on the users using the correction services.

The daily solution and monitoring of GNSS networks, such as HxGN SmartNet, is executed by the Leica Geosystems solution named Leica CrossCheck, which is based on Bernese GNSS software. Leica CrossCheck is capable to monitor GNSS networks of all scales.

KEYWORDS: GNSS reference station network, Bernese GNSS 5.4, Leica CrossCheck, Leica GNSS Spider, HxGN SmartNet, Leica GeoMoS Now!

References:
Dach, R., S. Lutz, P. Walser, P. Fridez (Eds); 2015: Bernese GNSS Software Version 5.2. User manual, Astronomical Institute, Universtiy of Bern, Bern Open Publishing. DOI: 10.7892/boris.72297; ISBN: 978-3-906813-05-9.