A GPS DISCIPLINED RUBIDIUM CLOCK

Wayne Dewey

Abstract: Sub-microsecond timing accuracy for event tagging and multi-site synchronization is possible using the Global Positioning System. In order to maintain a high degree of accuracy during periods when no satellites are visible, a highly stable local time base is required. For those cases which require Cesium oscillator stability, initial cost and continuing maintenance of the Cesium oscillator must be considered. A viable alternative is to use the Global Positioning System and an oscillator disciplining process. With this system, near Cesium performance can be achieved using a more rugged lower cost Rubidium oscillator. Additionally, when 24 hour satellite coverage becomes available, system performance may surpass that of a Cesium in long term stability.
Published in: Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting
November 28 - 30, 1989
Sheraton Hotel
Redondo Beach, California
Pages: 149 - 160
Cite this article: Dewey, Wayne, "A GPS DISCIPLINED RUBIDIUM CLOCK," Proceedings of the 21th Annual Precise Time and Time Interval Systems and Applications Meeting, Redondo Beach, California, November 1989, pp. 149-160.
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