Time of Day Management for Satellite Communications

Abstract

The U.S. Naval Research Laboratory has installed GPS-based timing systems in several DSCS satellite communication facilities to support the Single Channel Transponder program. These systems were originally installed between 1998 and 2000 in 11 sites located around the world. The goals were to manage the satellite crystal oscillators to 25 microseconds and the ground cesium clocks to 5 microseconds. This paper will describe the project's progress, with results showing the time management of the satellite oscillators and the cesium-beam clocks. A Windows-compatible computer program written to facilitate the clock management will also be described.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2002
Accession Number
ADA484649

Entities

People

  • J. White
  • Rebecca Evans

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Clocks
  • Computer Programs
  • Converters
  • Crystal Oscillators
  • Frequency
  • Global Positioning Systems
  • Information Operations
  • Measurement
  • Microsecond Time
  • Military Research
  • Observatories
  • Oscillators
  • Satellite Communications
  • Time
  • Time Intervals

Readers

  • Organizational Process Management (OPM).
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Tactical Satellite Communications Systems Engineering.

Technology Areas

  • Space