Parker, T.
and Matsakis, D.
(2004),
Time and frequency dissemination using GPS: Recent improvements, GPS World, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50006
(Accessed January 21, 2025)
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Time and frequency dissemination using GPS: Recent improvements
Published
Author(s)
, Demetrios Matsakis
Abstract
This is an article for a general audience that reviews recent imporvements in time and frequency delivery by the Global Positioning System (GPS). A significant improvement in direct time delivery was achieved when Selective Availability (SA) was turned off in 2000. This has allowed time delivery to the civilian user at better than 100 nanoseconds accuracy if the user exercises reasonable care. More sophisticated users can make use of the phase of the microwave carrier of the GPS signal to achieve sub-nanosecond precision.Citation
GPS World
Volume
15
Pub Type
Journals
Download Paper
Keywords
frequency, GPS, satellite, time
Citation
Issues
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Created October 31, 2004, Updated October 12, 2021