Innovation and Reliability of Atomic Standards for PTTI Applications

Robert Kern

Abstract:	Over the past 20 years, the U.S. Government has been the largest single customer for hyperfine frequency standards and clocks. In this same period the government directly and indirectly has provided financial support of extensive research, development and manufacturing methodology efforts in industrial and government laboratories. The GPS/NAVSTAR Program requirements for a spaceborne clock has provided new impetus and development monies to generate multiple sources of reliable frequency standards and clocks with life expectancies of 5 to 7 years. These multiple sources will produce significant economies and performance improvements to PTTI users in the U.S. The GPS/NAVSTAR designs should result in units with improved stability and environmental tolerance that will provide U.S. systems planners with strategic advantages in the PTTI field.
Published in:	Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting December 2 - 4, 1980 Goddard Space Flight Center Greenbelt, Maryland
Pages:	275 - 280
Cite this article:	Kern, Robert, "Innovation and Reliability of Atomic Standards for PTTI Applications," Proceedings of the 12th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, December 1980, pp. 275-280.
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