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Global Navigation Satellite Systems Report of a Joint Workshop of the National Academy of Engineering and the Chinese Academy of Engineering (2012) / Chapter Skim
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COMPASS/BeiDou Coordinate and Time Reference Systems--Yang Yuanxi, Tang Jing, and Han Chunhao
Pages 83-94

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From page 83...
... Multi-GNSS will do nothing without the same datum of coordinate and time system. In theory, all of the GNSS coordinate reference system should be referred to the same geocentric reference coordinate system, which is beneficial to the satellite navigation providers, the companies/producers of the GNSS receivers, and the users.
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From page 84...
... Fourth, the satellite orbit parameters may reflect the reference coordinate, which can be monitored by multi-GNSS receivers. Fifth, the reference coordinate system should include the dynamic deformation information, and the update of the reference frame should have standards, otherwise additional satellite orbit errors may be introduced in the satellite navigation systems.
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From page 85...
... Yang-etal_Fig2.eps bitmap
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From page 86...
... The adjustment of the measurements of BTRF stations with the prior information of ITRF will be performed. Unified orbit determination strategies using the same terrestrial tracking sta tions with the same measurements for all GNSS constellations are also beneficial for interchangeability.
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From page 87...
... The evaluation methods are usually divided into GPS satellite common view links (Liu et al., 2011) , GEO satellite common view links, and two-way time frequency comparison links (Liu et al., 2009)
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From page 88...
... Yang-etal_Fig4.eps bitmap
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From page 89...
... Yang-etal_Fig8.eps bitmap
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From page 90...
... 90 GLOBAL NAVIGATION SATELLITE SYSTEMS FIGURE 7 Time offset of BDT and UTC. Yang-etal_Fig9.eps bitmap Yang-etal_Fig10.eps FIGURE 8 Time offset between BDT and GPST.
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From page 91...
... Yang-etal_Fig12.eps bitmap
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From page 92...
... Yang-etal_Fig14.eps bitmap
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From page 93...
... There will build fiber chains of time and frequency transfer between MCS and the NTSC of the Chinese Academy of Science, National Institute of Metrology, etc. The time offset of BDT with respect to UTC can be obtained indirectly.
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From page 94...
... 2005. Combined adjustment project of national astronomical geodetic networks and 2000' GPS control network.
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Key Terms

  • satellite clock
  • reference coordinate
  • satellite navigation
  • time offset
  • navigation time

  • time scale
  • satellite common
  • terrestrial reference
  • reference frame
  • gps control

  • common view
  • control network
  • gps satellite
  • satellite orbit
  • frequency signals

  • gps network
  • geocentric reference
  • mean clock
  • clock rate
  • national gps

  • clock referred
  • continuous navigation
  • hydrogen clock
  • view links
  • integrated adjustment

  • coordinate frames
  • igs stations
  • hadamard variance
  • bdt bdt
  • operating reference


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