Daylight Imaging of SSA Targets Through Distributed Volume Non-Kolmogorov and Anisotropic Deep Turbulence at Low Elevation Angles

Abstract

Monte-Carlo simulations featuring Kolmogorov phase screens have long been used in understanding both the effects of atmospheric turbulence on imaging and the performance of turbulence mitigation methods. We have developed a new, high fidelity, non-Kolmogorov phase screen model that allows the orientation of anisotropy to vary arbitrarily. Our model is used to generate simulated video sequences featuring a common satellite-imaging target in lowelevation daylight imaging scenarios, where these effects are thought to be common. These sequences demonstrate the effects of anisotropic, non-Kolmogorov turbulence, which can be unintuitive. We also briefly examine how these non-traditional features affect the performance of certain post-processing techniques, such as speckle imaging.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2014
Accession Number
ADA617822

Entities

People

  • Jeremy P. Bos

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Anisotropy
  • Data Science
  • Detection
  • Distortion
  • Elevation
  • Information Processing
  • Information Science
  • Low Elevation
  • Monte Carlo Method
  • Sequences
  • Simulations
  • Space Situational Awareness
  • Spearography
  • Statistics
  • Turbulence
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Theoretical Analysis.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Space
  • Space - Space Objects