JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT ›› 2013, Vol. 33 ›› Issue (1): 43-48.doi: 10.12060/j.issn.1000-7202.2013.01.09

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Study on the Testing Method of Precise Time and Frequency  for COMPASS/GNSS User Terminals

SUN Hai-yan1;XIE Yan-min1;HU Yang1;CHEN Hong-qing2,3   

  1. 1、Beijing Global Information Center of Application and Exploration, Beijing 100094;
    2、National Time Service Center, Chinese Academy of Science, Xi'an, Shanxi 710600;
    3、Haihua Electronics Enterprise (China) Corporation, Guangzhou,Guangdong  510656
  • Online:2013-02-15 Published:2013-02-15

Abstract: It has been discussed this paper that the testing and calibrating means on precise time and frequency for the user terminals of COMPASS / GNSS navigation system, based on Virtual Instrument technology, on network technology and on batch measurement technology. It is put forward that the testing method based on modulization and on VXI / PXI / LXI bus technology, with the consistency design of standard time and frequency reference signals and the design of remote testing and calibrating based on network technology. At the same time, it is proposed that the structure design and it’s application of COMPASS / GNSS precise time and frequency testing and calibrating system. This way can upgrade the measuring level of COMPASS / GNSS time and frequency terminals with integration and intelligence.

Key words: Time and frequency, Timing terminal, Virtual Instrument, Remote calibration