[time-nuts] Chip-scale Atomic Clock !

[bg at lysator.liu.se]

Go check the NIST pages as well.

On Wed, September 20, 2006 0:56, Glenn said:
> Could be this:
> THE *CHIP*-SCALE *ATOMIC CLOCK* – RECENT DEVELOPMENT PROGRESS
> <http://tycho.usno.navy.mil/ptti/ptti2003/paper44.pdf#search=%22usno%20chip%20atomic%20clock%22>
> http://tycho.usno.navy.mil/ptti/ptti2003/paper44.pdf#search=%22usno%20chip%20atomic%20clock%22
>
> See also the conference papers at:
> http://www.symmttm.com/info_center_white_papers.asp
> # The MAC - A Miniature Atomic Clock.
> # An Ultra-Low-Power Physics Package for a Chip-Scale Atomic Clock.
> # The Chip-Scale Atomic Clock – Low-Power Physics Package: 2004.
> # The Chip-Scale Atomic Clock – Recent Development Progress: 2003.
> # The Chip-Scale Atomic Clock – Coherent Population Trapping vs.
> Conventional Interrogation: 2002.
> <http://www.symmttm.com/pdf/Precision_Frequency_References/wp_PTTI_2002.pdf>
>
>
>
> Brooks Shera wrote:
>> The excerpt  below from GPS World refers to a Chip-scale atomic clock
>> being developed by DARPA.
>>
>> Does anyone know what technology they might be using for such a clock?
>>
>> "Atomic Clock Synchronization
>> The U.S. Navy Space and Naval Warfare Systems Center San Diego is
>> incorporating a chip-scale atomic clock into a new GPS receiver design,
>> the Navigation Nugget. read more»The Nugget fuses a GPS
>> software-defined receiver with an inertial measurement unit (IMU),
>> synchronized by an onboard atomic clock, to create a positioning,
>> navigation, and timing-sensor suite capable of withstanding impaired and
>> threatened GPS environments. The chip-scale atomic clock is being
>> developed by Defense Advanced Research Projects Agency. Adding an atomic
>> clock to the GPS/IMU combination will help ground forces in canopy or
>> jammed environments and improve vertical accuracy. A large-scale
>> prototype Navigation Nugget is expected to be field tested in one year.
>> Space and Naval Warfare Systems Center, www.spawar.navy.mil/sandiego/.
>> "
>>
>>
>>
>> -Brooks
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>
>
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