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Development of multichannel dual-mixer time difference system to generate UTC (NICT)

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4 Author(s)
Nakagawa, F. ; Nat. Inst. of Inf. & Commun. Technol., Tokyo, Japan ; Imae, M. ; Hanado, Y. ; Aida, M.

A multichannel dual-mixer time difference (DMTD) system has been developed by the National Institute of Information and Communications Technology (NICT) for a measurement system to generate the UTC(NICT) time scale based on Coordinated Universal Time (UTC). This system measures time differences between a reference signal and 24 device under test (DUT) signals, simultaneously. We have confirmed that this system has enough accuracy to measure hydrogen maser and cesium clocks at an averaging time of 1 s.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:54 ,  Issue: 2 )