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NIST Authors in Bold
|Author(s):||Michael A. Lombardi; Aaron P. Dahlen;|
|Title:||A common-view disciplined oscillator|
|Published:||May 24, 2010|
|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. A Proportional-Integral-Derivative (PID) controller 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 (NIST) in Boulder, Colorado.|
|Citation:||Review of Scientific Instruments|
|Keywords:||disciplined oscillator,GPS,Internet,time scale,time transfer|
|Research Areas:||Physics, Time and Frequency|
|PDF version:||Click here to retrieve PDF version of paper (1MB)|