Investigation of Laser Propagation Phenomena

Abstract

The report deals with one aspect of restoration of atmospherically degraded images; the problem of defining isoplanatic patch size. The general restoration situation is considered to indicate the situation where the concept of isoplanaticism is appropriate. Then a model is considered and some problems of the Fourier transform technique of defining isoplanatic patch are pointed out. If the degraded reference function is not identical with the point response function then singularities in the spectrum of the intensity of the restored image can give rise to negative image functions. A measure for indexing this effect is indicated.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1973
Accession Number
AD0760548

Entities

People

  • S. A. Collins Jr.

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Angle Of Arrival
  • Coefficients
  • Contracts
  • Department Of Defense
  • Diffraction
  • Distortion
  • Electrical Engineering
  • Electromagnetic Fields
  • Engineering
  • Engineers
  • Fourier Series
  • Images
  • Intensity
  • Spearography
  • Spectra
  • Two Dimensional
  • Wavefronts

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Image Processing and Computer Vision.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy