two-way satellite time and frequency transfer
Two-way satellite time and frequency transfer (TWSTFT) is a high-precision long distance time and frequency transfer mechanism between time bureaux to determine and distribute time and frequency standards.
{{As of|2003}} TWSTFT is being evaluated as an alternative to be used by the Bureau International des Poids et Mesures in the determination of International Atomic Time (TAI), as a complement to the current standard method of simultaneous observations of GPS transmissions.
External links
- [https://web.archive.org/web/20021001184919/http://www.npl.co.uk/time/twstft.html TWSTFT page at the National Physical Laboratory]
- [https://www.ptb.de/cms/en/ptb/fachabteilungen/abt4/fb-44/ag-442/international-time-comparisons/two-way-satellite-time-and-frequency-transfer-twstft.html TWSTFT page at the Physikalisch-Technische Bundesanstalt]
- [http://tf.nist.gov/time/twoway.htm NIST TWSTFT page]
- [https://web.archive.org/web/20090302140808/http://www.usno.navy.mil/USNO/time/twstt TWSTFT page at the US Naval Observatory]
Category:Telecommunications techniques
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