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GPS Technical References

GPS Technical Library Document Request

Please complete this form to request copies of GPS technical documents that are not listed below, especially non-public documents.  Submit completed form to the NAVCEN Approving Official. The form will be forwarded to the Air Force for review.  The Library cannot process your request unless all necessary categories are complete and the request is digitally signed by an AIR FORCE GOVERNMENT APPROVER.  Incomplete requests will be returned to the requestor.  Standard processing time is 5 business days after receipt of a VALID request.

GPS SPS Performance Standard

GPS Technical References

GPS Satellite Antenna Panel Patterns

These documents describe the technical characteristics of the antenna panels on the GPS Block IIR and Block IIR-M satellites. The satellite manufacturer, Lockheed Martin, compiled the information based on its design specifications and ground test measurements of the antenna panels. These published antenna patterns and associated Institute of Navigation citation describe both IIR and IIR-M antenna panel versions, their broadcast signal patterns, the performance observed in factory testing, and their on-orbit performance. The posting of this information does not construe, in any manner, an endorsement of any company product or views.

Note: "These patterns represent the current capability of the GPS IIR/IIR-M Space Vehicles. Receiver designers should consult the IS-GPS-200 specifications for use in receiver design and not base design on current signal performance."

The GPS Block IIR and IIR-M Satellites:
GPS-IIF Satellites: Antenna Patterns for L1, L2 and L5
GPS-III Satellites:
Phase Center Offsets, Group Delay and Inter-signal Correction Values.

GPS Interface Control Documents (ICD) and Interface Specifications (IS)

Interface Control Documents (ICDs) and Interface Specifications (ISs) are the formal means of establishing, defining, and controlling GPS program interfaces and for documenting detailed interface design information for the GPS program.

IS-GPS-200 Navstar GPS Space Segment/Navigation User Interfaces
IS-GPS-800 Navstar GPS Space Segment/User Segment L1C Interface
IS-GPS-705 Navstar GPS Space Segment/User Segment L5 Interface
ICD-GPS-240 Navstar GPS Control Segment to User Support Community Interface
ICD-GPS-870 Navstar Next Generation GPS Control Segment (OCX) to User Support Community Interface
ICD-GPS-060 GPS User Equipment (Phase III) Interface Control Document for the Precise Time and Interval (PTTI)
GPS User Equipment Introduction