Revisions to An Overview of the Global Positioning System (GPS)

• Revision history
• Revised 6/16/96:
  • C/A Code PRN Code Chips Image at Code Phase Tracking (Navigation)
• Revised: 5/14/96:

• New ECEF Cartesian to geodetic coordinate conversion images at Receiver Position, Velocity, and Time

• Revised: 1/23/96:

• A new link to Alfred Leick's GPS materials at Alfred Leick's GPS Page

• Revised: 11/10/95

• Corrections to the data bit frame and subframe description at GPS Data

• Revised: 10/04/95

• A new link to Navtech Seminars & GPS Supply (a source for GPS reference materials) at Navtech Seminars and GPS Supply

• Revised: 09/09/95
  • A new link to the Institute of Navigation with membership information and publication order forms at The Institute of Navigation
• Revised: 08/01/95
  • Full Operational Capability Notice at Documents
  • New Constellation Status Message at Documents
  • New interlaced graphics files for all linked images.
  • Nominal Orbit Plane Diagram at Space Segment
  • Simplified GPS Receiver Block Diagram at Code Phase Tracking (Navigation)
  • GPS Data Bit Demodulator and C/A Code Control Block Diagram at Code Phase Tracking (Navigation)
• Revised: 07/13/95
  • An important new document containing many details on GPS, the Global Positioning System Standard Positioning Service Specification, 2nd Edition, June2, 1995, is available on line from United States Coast Guard Navigation Center
  • The signal specification is also available through anonymous ftp from ftp://www.navcen.uscg.mil/ftp/gps/reports/ as sigspec.exe. See the ssreadme.txt file for instructions
• Revised: 07/10/95
  • C/A Code Generator and C/A Code Phase Assignments at Code Phase Tracking (Navigation)
• Revised: 06/29/95>
  • New link to U. S. Coast Guard Navigation Center at United States Coast Guard Navigation Center
• Revised: 06/09/95
  • Another Updated Navigation Solution Algorithm Example in Pseudo-Range Navigation
• Revised: 05/27/95:
  • New Graphic for GPS Control and Monitor Station Network at Control Segment
• Revised: 05/24/95:
  • New link to GPS Applications page at John Beadles' Introduction to GPS Applications
  • Updated URLs for the Geographer's Craft and other UT WWW sources
• Revised: 05/20/95:
  • Expanded Selective Availabilty description in Selective Availability.
  • Expanded Differential GPS description in Differential GPS (DGPS) Techniques.
• Revised: 05/16/95:
  • Anti-Spoofing (AS) Definition in GPS Satellite Signals
  • Updated Navigation Solution Algorithm Example in Pseudo-Range Navigation
  • Ephemeris Parameter Set Used in Navigation Solution Example in Pseudo-Range Navigation
  • Updated GDOP Computation Example in Geometric Dilution of Precision (GDOP)
• Originally published in September 1994.
• Return to GPS Overview