Activities on Time and Frequency at Shanghai Observatory

Abstract

The activities on time and frequency during recent two years at Shanghai Observatory are summarized as follows: 1. Atomic Frequency Standards. Several improvements to the H-masers and the primary laboratory's Cs standard were introduced at the Shanghai Observatory. A transportable hydrogen maser has been recently developed. 2. Atomic Time Scale. The recent progress in Shanghai Observatory's atomic time scale AT(SO) is described. The formation of the Chinese Joint Atomic Time (TAJ) is also presented. 3. Satellite TIP transfer. Recent developments in time synchronization via GMS ranging signal are discussed. 4. Time Service and T/F Applications. 5. Future Plans for Time and Frequency.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA492722

Entities

People

  • Jinlin Hu
  • Qixiang Zhuang
  • Wunwei Kiu
  • Zaocheng Zhai

Organizations

  • Chinese Academy of Sciences

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Atomic Beam Masers
  • Clocks
  • Frequency
  • Frequency Shift
  • Frequency Standards
  • Geosynchronous Satellites
  • Hydrogen
  • Lasers
  • Loran
  • Measurement
  • Observatories
  • Precision
  • Range Finding
  • Standards
  • Temperature Gradients

Fields of Study

  • Physics

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space