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Resolution 4 of the 18th CGPM (1987)
Version française
Time comparisons using satellite links

    The 18th Conférence Générale des Poids et Mesures

    considering

  • that high-precision timing is rapidly becoming an essential part of modern telecommunications,
  • that two-way satellite links allow international time comparisons at very high precision,
  • that it appears possible to exchange pseudo-random-noise timing signals simultaneously but without interference with other uses of the channel,
  • that such pseudo-random-noise techniques also allow high-precision ranging,
  • recommends that the responsible national and international bodies support experiments over telecommunications satellite links for the study of synchronization techniques by means of pseudo-random-noise modulation within the framework of the international timing programs as part of the generation of International Atomic Time.



Reference:
Comptes Rendus de la 18e CGPM (1987), 1988, p.99
Metrologia, 1988, 25(2), 113-119

The reader should note that the official version of this Resolution is the French text.

 
Other Resolutions of the 18th CGPM (1987)
Resolution 1
Resolution 2
Resolution 3
Resolution 4
Resolution 5
Resolution 6
Resolution 7
Resolution 8
Resolution 9