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The Global Positioning System A Shared National Asset (1995) / Chapter Skim
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Pages 163-163

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From page 163...
... Others, such as air navigation, can require that GPS signals be available 99.999 percent of the time. The average availability of four or more GPS satellites in new of a given receiver, at SPS accuracy levels, is currently specified as 99.85 percent.32 Continuity of Service Continuity of service, which also is referred to as reliability, is the ability of a navigation system to provide required service over a specified period of time without interruption.
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Key Terms

  • gps signal
  • global positioning
  • gps receiver
  • gps signals
  • gps satellite

  • positioning service
  • civilian users


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