Navigation by Satellite: Control Segment

  • F. G. Major


The functions of the control segment on the ground (CS) are crucial to the coordinated operation of the GPS: these functions include tracking the many satellites that make up the GPS constellation, monitoring their L-band navigation transmissions to determine the status of their onboard subsystems, particularly their atomic clocks, and analyzing their ephemerides. The operational control segment then transmits back commands and data to take corrective measures as needed with respect to orbital parameters and onboard atomic clocks, resolve any anomalous behavior, and generally require that all subsystems function according to specifications. These functions are carried out by a global network of ground-based installations controlled by a master control station and one alternate master station.


Global Navigation Satellite System Global Navigation Satellite System Very Long Base Interferometry Satellite Laser Range Satellite Clock 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • F. G. Major
    • 1
  1. 1.Severna ParkUSA

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