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Recent advances in time and frequency measurement at NTSC

Shaowu Dong

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The National Time Service Center (NTSC), Chinese Academy of Sciences, is responsible for the maintenance and development of the Chinese national timescale, UTC(NTSC). The main responsibilities include maintenance of UTC(NTSC), UTC(JATC) and the BPL long-wave and the BPM short-wave time transmission station. In this paper, we will mainly introduce recent advances in time and frequency measurement at NTSC, including the establishment of a local timescale, international time comparison and various time dissemination services in operation.


PACS

06.30.Ft Time and frequency

06.20.F- Units and standards

06.20.Dk Measurement and error theory

Subjects

Instrumentation and measurement

Dates

Issue 3 (June 2003)

Received 11 April 2002

Published 5 June 2003



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