Clock Comparison Using Digital Television Signals

Abstract

The U.S. Naval Research Laboratory (NRL) and the U.S. Naval Observatory (USNO) have done precision clock comparison using an analog television signal as a common phase reference since the mid 1980s. With the demise of analog television in the United States, that method is no longer viable. A new technique has been developed using the pilot tone on the digital television signal. The system is currently running between NRL and USNO. This paper will present the design and show the performance achieved.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2009
Accession Number
ADA518080

Entities

People

  • Douglas Boehm
  • Edward Powers
  • Joe White
  • Stephen Mitchell

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Atomic Beam Masers
  • Carrier Frequencies
  • Clocks
  • Computer Programs
  • Crystal Oscillators
  • Data Processing
  • Digital Television
  • Frequency
  • Global Positioning Systems
  • High Resolution
  • Intervals
  • Local Oscillators
  • Military Research
  • Oscillators
  • Residuals
  • Time Intervals

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Strategic Security Studies