Wave-optics simulation of correlated speckle fields for use in closed-loop-tracking studies

Derek J. Burrell, Mark F. Spencer, Noah R. Van Zandt, Ronald G. Driggers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we use a series of computational-wave-optics experiments to address the statistics associated with image-plane speckle fields resulting from a tilted flat plate that is rough compared to the wavelength of uniform illumination. To quantify the strength of simulated speckle, we make use of the focal ratio a.k.a. f number. This parameter provides a gauge for the size of speckles appearing across the image of a target. Our goal throughout is to show that, frame to frame, the analysis can appropriately simulate correlated speckle fields in an image plane. Our results show that the speckle fields we simulate are properly correlated from one frame to the next, relative to closed-form expressions. This outcome leads to the ability to perform closed-loop-tracking studies, which are becoming increasingly important for applications that involve imaging through turbulence.

Original languageEnglish (US)
Title of host publicationUnconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019
EditorsJean J. Dolne, Mark F. Spencer, Markus E. Testorf
PublisherSPIE
ISBN (Electronic)9781510629639
DOIs
StatePublished - 2019
Externally publishedYes
EventUnconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019 - San Diego, United States
Duration: Aug 14 2019Aug 15 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11135
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceUnconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019
Country/TerritoryUnited States
CitySan Diego
Period8/14/198/15/19

Keywords

  • Atmospheric turbulence
  • Beam control
  • Directed energy
  • Speckle correlation
  • Statistical analysis
  • Target tracking
  • Wave optics
  • Wavefront sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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