3 papers
physics.atom-ph2020
Absolute frequency of at uncertainty by reference to remote Primary Frequency Standards
Nils Nemitz, Tadahiro Gotoh, Fumimaru Nakagawa +4
The optical lattice clock NICT-Sr1 regularly reports calibration measurements of the international timescale TAI. By comparing measurement results to the reports of eight Primary F…
eess.SP2018
Range Variation Monitoring with Wireless Two-Way Interferometry (Wi-Wi)
Bhola R. Panta, Kohta Kido, Satoshi Yasuda +6
We demonstrated a simple technique for monitoring range variation with millimeter-precision between two remote sites using off-the-shelf wireless communication modules. The need fo…
physics.atom-ph2018
Months-long real-time generation of a time scale based on an optical clock
Hidekazu Hachisu, Fumimaru Nakagawa, Yuko Hanado +1
Time scales consistently provide precise time stamps and time intervals by combining atomic frequency standards with a reliable local oscillator. Optical frequency standards, howev…