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

Author

Nakagawa, Fumimaru ; Imae, Michito ; Hanado, Yuko ; Aida, Masanori

Author_Institution

Nat. Inst. of Inf. & Commun. Technol., Tokyo, Japan

Volume

54

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

829

Lastpage

832

Abstract

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.

Keywords

measurement standards; mixers (circuits); time measurement; National Institute of Information and Communications Technology; cesium clocks; coordinated universal time; device under test signals; hydrogen maser; measurement system; multichannel dual-mixer time difference system; time measurement; Atomic clocks; Atomic measurements; Communications technology; Frequency measurement; Hydrogen; Masers; Phase measurement; Stability; System testing; Time measurement; Time measurement;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.843382

Filename

1408299