Time and frequency transfer
- Time and frequency transfer
Time and frequency transfer describes mechanisms for comparing measurements of time and frequency from one location to another. The technique is commonly used for creating and distributing standard time scales such as International Atomic Time (TAI).
Examples of time and frequency transfer techniques include:
*Simultaneous observation methods:
** Simultaneous carrier phase observation of GPS signals
** Time transfer by simultaneous observation of TV transmissions
** Time transfer by simultaneous observation of radio astronomy signals
*Two-way transfer methods:
** Two-Way Satellite Time and Frequency Transfer
ee also
* Synchronization
External links
* [http://www.metas.ch/en/labors/4/tvgps.html GPS and TV Time Comparison Techniques]
* [http://www.boulder.nist.gov/timefreq/time/carrierphase.htm Time and Frequency Transfer using the phase of the GPS Carrier]
* [http://tycho.usno.navy.mil/gpscp.html Global Positioning System Carrier-Phase]
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