Normalization Factors Used in Estimating Variance.

Abstract

This report determines the correct factor (N, N-1, N-2, or others - where N is the number of lines-of-bearing) used in estimating variance from fixing data. Four methods of estimating fixes are considered: Perpendicular, Weighted Perpendicular, Minimization of Squared Angular Error, and Minimization of Sine of Squared Angular Error. A table of results from numerical experiments using the Perpendicular method is presented. The formula for first order estimation of variance for the other three methods is derived. Evaluation of this formula and proof that the normalizing factor in all three cases is N-2 is relegated to an appendix.

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Document Details

Document Type
Technical Report
Publication Date
Jan 22, 1987
Accession Number
ADA194565

Entities

People

  • Michael W. Rennie

Organizations

  • Jet Propulsion Laboratory

Tags

Communities of Interest

  • Sensors

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  • Algorithms
  • Army Intelligence
  • California
  • Contracts
  • Corporations
  • Estimators
  • Jet Propulsion
  • Mathematical Analysis
  • Numbers
  • Q Factor
  • Security
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  • Standards
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  • Two Dimensional
  • United States

Fields of Study

  • Mathematics

Readers

  • Approximation Theory.