Estimating the Instability of a Composite Clock

Abstract

A composite clock created from a local clock ensemble is known by its time offsets from the ensemble clocks. By a geometrical argument, estimates for the instability of the composite clock are calculated from the instabilities of the ensemble clocks, individually and against the composite clock. The method is illustrated by examples using simulated and real ensembles.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA485630

Entities

People

  • C. A. Greenhall

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Atomic Beam Masers
  • Clocks
  • Composite Materials
  • Computations
  • Electronic Mail
  • Frequency
  • Instability
  • Intervals
  • Jet Propulsion
  • Kalman Filters
  • Markov Processes
  • Random Walk
  • Simulations
  • Stochastic Processes
  • Time Intervals

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Structural Health Monitoring of Composite Structures.