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Timing Synchronization
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Precision timing synchronization is the ability to synchronize
two clocks that are geographically distant from each other.
Synchronizing clocks to the second or millisecond over a
certain period of time is typically not a challenge. Robustly
synchronizing clocks to the billionth and trillionth of a
second, however, is a challenge. We are currently developing a
capability that will synchronize multiple clocks or “nodes”
to accuracies below the billionth of a second (nanosecond).
This capability is called PhaseNet. It is intended
for spaceborne, airborne and terrestrial systems.
In operation PhaseNet vastly improves data sensing resolution
and geolocation accuracies. It is inherently scalable, so any
satellite constellation using it can add or remove satellites
at any time. It creates a robust, spaceborne network infrastructure
that enables any number of satellites that join to immediately
tap into its timing and ranging accuracy upon initialization
into the constellation. The establishment of such precision
timing synchrony and ranging enables space-time stamping which
is applicable across a variety of applications and industries
such as remote sensing, geolocation, telecommunications,
wireless and information assurance.
PhaseNet’s space-time stamping utility is an information and networks sciences driven design that is:
- Scalable
- Robust
- Near Real-time
- Plug & Play
- Loose-Cloud Flying
- Orders of magnitude more accurate than existing systems
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