TITLE

A common-view disciplined oscillator

AUTHOR(S)
Lombardi, Michael A.; Dahlen, Aaron P.
PUB. DATE
May 2010
SOURCE
Review of Scientific Instruments;May2010, Vol. 81 Issue 5, p055110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper describes a common-view disciplined oscillator (CVDO) that locks to a reference time scale through the use of common-view global positioning system (GPS) satellite measurements. The CVDO employs a proportional-integral-derivative controller that obtains near real-time common-view GPS measurements from the internet and provides steering corrections to a local oscillator. A CVDO can be locked to any time scale that makes real-time common-view data available and can serve as a high-accuracy, self-calibrating frequency and time standard. Measurement results are presented where a CVDO is locked to UTC(NIST), the coordinated universal time scale maintained at the National Institute of Standards and Technology in Boulder, Colorado.
ACCESSION #
51059062

 

Related Articles

  • Real-Time Software Radio Architectures for GPS Receivers. Akos, Dennis // GPS World;Jul2001, Vol. 12 Issue 7, p28 

    Focuses on real-time software radio architectures for Global Positioning System (GPS) receivers. Innovations in software radio design; Advantages of GPS software receiver for testing and simulation; Traditional receiver architecture; X86-compatible gpSrx receiver. INSET: GPS Signal Acquisition.

  • Providing Continuity and Coverage. Enge, Per // GPS World;Jul2001, Vol. 12 Issue 7, p38 

    Focuses on networks of Global Positioning System reference receivers. Navigation message contents; Replacement of the Z-count; Improvement of signal sensitivity.

  • Hey, Europe! Vaughn, David // GPS World;Jul2001, Vol. 12 Issue 7, p56 

    Focuses on the use of Global Positioning System (GPS) in Europe. Attendance of the author at the Fifth International GNSS Symposium; Creation of a GPS-like system.

  • No Good Deed Goes Unpunished. Gibbons, Glen // GPS World;Jul2002, Vol. 13 Issue 7, p6 

    Focuses on the development of Global Position System III. Coverage of cost overruns in the Space Based Infrared System missile warning system; Importance of space assets to national security.

  • Washington View: GPS III, Modernization Face Budget Cuts. Divis, Dee Ann // GPS World;Jul2002, Vol. 13 Issue 7, p10 

    Reports on budget cuts for the development of GPS III in the U.S. Issues facing the U.S. Air Force on other space systems; Impact of delay on planned GPS improvements.

  • EU Establishes Galileo JU; Funding Dispute Slows ESA Efforts.  // GPS World;Jul2002, Vol. 13 Issue 7, p12 

    Reports on the European Council's adoption of regulations for a Galileo Joint Undertaking (JU). Search for a JU director; Europe's global navigation satellite system; Signals that will be broadcast by Galileo.

  • UK Group Proposes GPS-Measured Tolls.  // GPS World;Jul2002, Vol. 13 Issue 7, p13 

    Reports on the United Kingdom Commission for Integrated Transport's proposed Global Positioning System-measured tolls. Debate over the proposal; Reduction of national monitoring taxes.

  • Galileo: The Launch of a European Initiative. de Palacio, Loyola // GPS World;Jul2002, Vol. 13 Issue 7, p14 

    Reports on Europe's Galileo Global Positioning System program. Joint Undertaking initiative; Frequencies; International cooperation.

  • SAASM and Direct P(Y) Signal Acquisition. Fruehauf, Hugo; Callaghan, Steven // GPS World;Jul2002, Vol. 13 Issue 7, p24 

    Focuses on Selective Availability Anti-Spoofing Module and Direct P(Y) signal acquisition. Capabilities brought to military and civil users; Use of Global Positioning System Precise Precisioning Service.

  • What Do Consumers Really Think? (About Location-Based Services). Driscoll, Clement // GPS World;Jul2002, Vol. 13 Issue 7, p34 

    Focuses on consumers' views on location-based services in the U.S. Interest in security-related services; Cellular subscribers. INSETS: Telematics Service Definitions;Cell Phone LBS Service Definition.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics