A GPS Disciplined Rubidium Clock
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1989
- Accession Number
- ADA521213
Entities
People
- Wayne Dewey