Coherent Frequency Reference Generation in the NASA Deep Space Network

Abstract

JPL is nearing completion of a new frequency reference generation and distribution system to replace the DSN FTS Coherent Reference Generator (CRG). The existing CRG selects the online frequency standard, synthesizes standard reference frequencies, and provides fan-out to distribute to users which may be up to 30 km away. Like the existing CRG that is critical to DSN operation, the replacement system must be extremely reliable and preserve the high stability and low phase noise performance of the central frequency standard. In addition, in the replacement system the process and effect of switching to other backup or specialized frequency standards should also be transparent to DSN Operations. Reliability shortcomings of the old system are addressed by upgrading to modern and modular system components, reducing the number of distributed frequencies, and adding redundancy or managing single points of failure.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2008
Accession Number
ADA503431

Entities

People

  • B. Tucker
  • J. Gouzalez
  • J. Lauf
  • R. Hamell
  • R. L. Tjoelker
  • W. Diener

Organizations

  • Jet Propulsion Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Control Systems
  • Deep Space
  • Demographic Cohorts
  • Frequency
  • Frequency Dividers
  • Frequency Standards
  • Jet Propulsion
  • Oscillators
  • Power Supplies
  • Processing Equipment
  • Regulators
  • Signal Processing
  • Standards
  • Test And Evaluation
  • Time Intervals
  • Voltage Regulators

Fields of Study

  • Engineering

Readers

  • Life Cycle Cost Analysis
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Software Engineering

Technology Areas

  • Space
  • Space - Satellites