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 > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
