Reduction of Anisoplanatic Errors.

Abstract

The potential of reducing anisoplanatic errors in adaptive optical systems through the use of estimation theory is studied. Currently anisoplanatic errors place a fundamental limit on the performance of adaptive optical systems. Due to the ill behaved nature of the random processes involved, the estimation procedure is formulated in terms of the strucutre and hyperstructure functions. These functions are widely used in the literature dealing with turbulence and optical propagation through turbulence. A particular turbulence profile is chosen to evaluate the performance of the estimation procedure. A reasonable reduction in the ansioplanatic error is obtained through use of the estimation procedure. Only signals which are currently available in adaptive optical systems are required to implement the estimation procedure, no a priori knowledge is required. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA106689

Entities

People

  • Donald W. Hanson

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Altitude
  • Amplitude Modulation
  • Artificial Satellites
  • Data Sets
  • Distortion
  • Estimators
  • Line Of Sight
  • Measurement
  • Phase Distortion
  • Random Variables
  • Refraction
  • Refractive Index
  • Signal Detection
  • Signal Processing
  • Space Systems
  • Statistical Analysis
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Geochemistry
  • Statistical inference.
  • Systems Analysis and Design