GPS Signal Integrity Dependencies on Atomic Clocks

Abstract

The problem of signal integrity for GPS satellites and the primary dependency upon inherent characteristics of onboard atomic frequency standards are discussed. In particular, there is a need for characterizing peak deviation of GPS clocks from prediction. Results from a preliminary study of two GPS clocks tested on the ground show that the distribution of peak deviations from prediction cannot be assumed to be Gaussian.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA474208

Entities

People

  • Marc Weiss
  • Pradipta Shome
  • Ron Beard

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Atomic Clocks
  • Clocks
  • Distance Measuring Equipment
  • Distribution Functions
  • Failure Mode And Effect Analysis
  • Frequency
  • Measurement
  • Navigation
  • Probability
  • Radio Navigation
  • Radio Ranges (Transmitters)
  • Space Systems
  • Space Transportation
  • Spacecraft
  • Standards
  • Time Intervals

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Regression Analysis.

Technology Areas

  • Space