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The Operational Status of NAVSTAR/GPS

Published online by Cambridge University Press:  23 November 2009

Edward M. Lassiter  and
Bradford Parkinson
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Extract

The NAVSTAR Global Positioning System (GPS) is a satellite-based navigation system that will provide extremely accurate three-dimensional position fixes and timing information to properly equipped users anywhere on or near the Earth. The system will be available continuously regardless of weather conditions and will find extensive utilization in improved weapons delivery accuracies, range instrumentation, &c. Furthermore it will provide an ultimate saving in the number and cost of navigation and position-fixing systems currently employed or projected. It is a Joint Service programme managed by the U.S.A.F. with deputies from the Navy, Army and Marines and the Defense Mapping Agency. The system concept evolved from U.S.A.F. and Navy studies initiated in the mid-1960s. Current programme plans call for the deployment of six satellites in 1977 to permit demonstration and evaluation tests over the continental United States. The system will then be expanded through the deployment of additional satellites into an operational 24-satellite system.

Type
‘Two Centuries of Navigation’
Information
The Journal of Navigation , Volume 30 , Issue 1 , January 1977 , pp. 35 - 47
Copyright
Copyright © The Royal Institute of Navigation 1977

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References

REFERENCES

2Lassiter, E. M., ‘Navigation in Space’, AIAA Review to be published in 1976.Google Scholar
3Cretcher, C. K. (1974). ‘NAVSTAR/GPS error analysis’ Aerospace Corp. Technical Memorandum, ATM 75 (5461-01)-06, November 20.Google Scholar
4Cretcher, C. K. (1974). ‘NAVSTAR/GPS System description, program plan, and user performance’ presented at the SAE Aerospace Control and Guidance Committee Number 33 (May 15–17, Scottsdale, Az.).Google Scholar