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The Global Positioning System A Shared National Asset (1995) / Chapter Skim
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Pages 108-108

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From page 108...
... Planned Block IlR Operation Currently, each Block II/IlA satellite is updated once a day from the OCS with clock and ephemeris corrections generated by the MCS's Kalman Filter. As a result of military requirements, each Block IIR satellite Will have a Kalman Filter on board and will be able to autonomously determine clock and ephemeris corrections independent of the ocs.48 By 47 Memorandum from Cot.
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Key Terms

  • kalman filter
  • block iir
  • operational control
  • ephemeris corrections
  • control segment

  • iir satellites
  • existing software
  • pseudorange measurements
  • iir satellite
  • planned block

  • clock offset
  • segment software
  • ephemeris updates
  • improved software
  • ocs software

  • using uhf
  • measurements using


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