[time-nuts] Chip-scale Atomic Clock !

Jean-Louis Oneto Jean-Louis.Oneto at obs-azur.fr
Tue Sep 19 18:59:10 EDT 2006

you will find a lots of details at:
Jean-Louis Oneto
OCA GEMINI - Avenue Copernic - 06130 Grasse - France
e-mail: Jean-Louis.Oneto at obs-azur.fr
----- Original Message ----- 
From: "Brooks Shera" <ebs at wildblue.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Wednesday, September 20, 2006 12:48 AM
Subject: [time-nuts] Chip-scale Atomic Clock !

> 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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