Optimal Atmospheric Compensation for Anisoplanatism in Adaptive-Optical Systems.

Abstract

Anisoplanatism in adaptive optics (AO) systems is a performance-degrading effect that arises whenever light ftom the wave-front sensor beacon and light ftom the object of interest sample different volumes of optical turbulence. This effect occurs if there is either a spatial separation between the object and the beacon, or a spatial separation between the wave-front sensor and phase-compensation aperture, or if both types of separation are present in the AO system. Anisoplanatism results in an increased value of the aperture-averaged residual phase variance after AO compensation, which causes an exponential decrease in system performance. This dissertation offers a theoretical framework in which the most-general form of anisoplanatism can be analyzed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1998
Accession Number
ADA353786

Entities

People

  • Matthew R. Whiteley

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adaptive Optics
  • Air Force
  • Atmospheric Motion
  • Computational Fluid Dynamics
  • Computational Science
  • Cross Correlation
  • Data Science
  • Diffraction
  • Directed Energy Weapons
  • Information Science
  • Optical Phenomena
  • Optical Properties
  • Optics
  • Optimal Estimators
  • Statistics
  • Turbulence
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Astronomy and Astrophysics.
  • Optical Physics and Photonics.