Statistical Problems in the Analysis of Unequally Spaced Data

Abstract

The statistical analysis of irregularly spaced data or the handling of series with missing data asks for particular care because results may be biased. In particular, in PTTI applications, two points seems to be addressed: (1) the noise analysis in terms of Allan or related variances; and (2) the estimation of a missing datum on a particular date. Both these issues are examined in the particular case of the current TWSTT measurement, by means of an analytical and theoretical approach that can be of more general interest. Some numerical estimates based on the TWSTT measures are eventually reported.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1998
Accession Number
ADA511708

Entities

People

  • Mauro Leonardi
  • Patrizia Tavella

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Atomic Beam Masers
  • Clocks
  • Covariance
  • Diffusion Coefficient
  • Equations
  • Filters
  • Frequency
  • Frequency Standards
  • Interpolation
  • Intervals
  • Kalman Filters
  • Markov Processes
  • Random Walk
  • Standards
  • Statistical Analysis
  • Stochastic Processes
  • Time Intervals

Fields of Study

  • Mathematics

Readers

  • Computational Modeling and Simulation
  • Phased Array Antenna Design.
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space
  • Space - Space Objects