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The Global Positioning System A Shared National Asset (1995) / Chapter Skim
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Pages 61-66

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 61...
... Military applications with accuracy requirements currently unmet by the PPS are included in Table 2-~l, and civil applications are grouped according to their accuracy requirements in tables 2-12 though 2-16. As these tables and the preceding discussions in this chapter clearly illustrate, the civilian applications that currently require augmentation or enhancement of the GPS SPS far outweigh those that do not.
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From page 62...
... included in this chapter. Table 2-12 Summary of Civilian Applications with Accuracy Requirements of 100 Meters or Greater (currently achievable with the basic GPS SPS)
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From page 63...
... : Accident Data Collection ~ m Not ~ to ~ s 99.7% speciified Spacecraft (Satellites) Orbit Determination 50 m Not Not Not specified (real time)
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From page 64...
... Harbor approach | 8.0 to 20.0 m | Not 1 6 to~10 s | 997% l Nangat~on specified Inland Waterwa, Nav gallon ~ 3.0 m ~ Not ~ ~6 to Able s ~ Not specified speckled ,., 2.' Rai road Train Control 1.0 m Not ~ s 99.7% speci led ITS and ~ Highway Navigal Vehicle ~ Guidance I I specified Position- ~ Mayday/Inciden Alert ~ 5.0 to 30.0 m ~ Not ~ ~ tom s ~ ~ 99.7% Location speckled Automated Bus/ ail-Stop ~ 5.0 to 30.0 m ~ Not ~ to As ~ 99.7% nn neaten specified .-.- - - - .-.-. Collision Avoidance, Control 1.0 m Not tots tS ~99.7% l | | specified ~-~ Co ision Avoidance, 5.0 m Not 99.7% Ha ardous Situation specified .
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From page 65...
... | Geodynamics | 0.001 m + | Not | Hours | Not 109 x baseline specified specified length Spacecraft Orbit Determination + 0.001 m Not Not Not (satellites) (post-process)
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Key Terms

  • orbit determination
  • gps applications
  • collision avoidance
  • accuracy requirements
  • attitude determination

  • precision farming
  • earth science
  • gps sps
  • global positioning
  • automatic dependent

  • route oceanic
  • civilian accuracy
  • military applications
  • basic gps
  • civilian users


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