Long-Term Evaluation of GPS Timing Receiver Failures

Abstract

This paper provides an overview of the results of a continuous, 2-month experimental evaluation of all timing data provided by several GPS receivers. The primary purpose of this experiment was to provide measurement data facilitating fault modeling in out project SynUTC, which aims at external clock synchronization in fault-tolerant distributed real-time systems. As expected, the GPS receivers under test exhibited a wide variety of failures, ranging from transient omissions up to considerable deviations of the timing signals provided. Whereas those findings justify the appropriateness of our basic failure assumptions, it became never-the-less apparent that rerunning the experiment for a longer duration and with new brands/models of GPS receivers is advisable.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA511020

Entities

People

  • Dieter Hochtl
  • Ulrich Schmid

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Communication Systems
  • Data Acquisition
  • Global Positioning Systems
  • Measurement
  • Navigation
  • Position (Location)
  • Probability
  • Random Walk
  • Reliability
  • Satellite Navigation Systems
  • Standards
  • Statistical Analysis
  • Test And Evaluation
  • Time Intervals
  • Weighting Functions

Readers

  • Aerospace Test and Evaluation
  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Systems Analysis and Design

Technology Areas

  • Space