SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 145: Cosmic Ray VIII
T 145.6: Vortrag
Donnerstag, 23. März 2023, 18:45–19:00, POT/0081
Nanosecond time synchronisation with GNNS antennas for application in autonomous astroparticle physics detectors. — •Qader Dorosti1, Markus Cristinziani1, Stefan Heidbrink2, Noah Siegemund1, Jens Winter2, and Michael Ziolkowski2 — 1Center for Particle Physics Siegen, Experimentelle Astroteilchenphysik, Universität Siegen — 2Elektronikentwicklungslabor des Departments Physik, Universität Siegen
The new generation of commercially available navigation satellite receivers, known as highly accurate multi-band GNSS timing modules, are designed to meet the requirements of the 5G mobile standard. They can achieve local time synchronisation with an accuracy of 5 ns (1 sigma) with respect to the Universal Time Clock. This accuracy is obtained by exploiting a dual-frequency technique that effectively compensates for the dominant source of error in signal propagation through the ionosphere without the need for additional correction data. The stricter requirements for the future mobile radio standard 6G will lead to a further significant improvement in time synchronisation with an expected accuracy of less than 1 ns. This is relevant for the instrumentation of future astrophysical experiments and is being pursued by our group through the testing and evaluation of novel GNSS products in the field. Here we present our investigations on the latest multiband GNSS receivers, where we achieved time synchronisation of clock signals of 3.5 ns from two GNSS receivers operating 40 m apart for several hours. Strategies for improving performance will be discussed.