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Time transfer using the phase of the GPS carrier
Summary
We tested time transfer accuracy using GPS carrier phase signals. Experiments showed precise time synchronization between distant clocks, demonstrating GPS
Area of Science:
- Metrology
- Geodesy
- Satellite Navigation Systems
Background:
- Accurate time transfer is crucial for scientific research and technological applications.
- Global Positioning System (GPS) offers a potential method for precise time synchronization.
Purpose of the Study:
- To evaluate the efficacy of using GPS carrier phase for time transfer.
- To assess the precision of time synchronization between geographically separated clocks using GPS technology.
Main Methods:
- Conducted experiments utilizing the phase of the GPS carrier signal for time transfer.
- Employed two distinct experimental setups: closely spaced antennas with independent receivers and geographically separated clocks (NIST, Boulder vs. US Naval Observatory, Washington, DC).
Main Results:
- Demonstrated successful time transfer using GPS carrier phase.
- Achieved precise time synchronization between clocks in both experimental configurations.
Conclusions:
- GPS carrier phase is a viable and accurate method for time transfer.
- The technology enables reliable synchronization of clocks over significant distances.
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