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Proceedings Article

Anisoplanatic performance of horizontal-path speckle imaging

[+] Author Affiliations
Carmen J. Carrano

Lawrence Livermore National Lab. (USA)

Proc. SPIE 5162, Advanced Wavefront Control: Methods, Devices, and Applications, 14 (December 10, 2003); doi:10.1117/12.508082
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From Conference Volume 5162

  • Advanced Wavefront Control: Methods, Devices, and Applications
  • John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen
  • San Diego, California, USA | August 03, 2003

abstract

We have previously demonstrated and reported on the use of sub-field speckle processing for the enhancement of both near and far-range surveillance imagery of people and vehicles that have been degraded by atmospheric turbulence. We have obtained near diffraction-limited imagery in many cases and have shown dramatic image quality improvement in other cases. As it is possible to perform only a limited number of experiments in a limited number of conditions, we have developed a computer simulation capability to aid in the prediction of imaging performance in a wider variation of conditions. Our simulation capability includes the ability to model extended scenes in distributed turbulence. Of great interest is the effect of the isoplanatic angle on speckle imaging performance as well as on single deformable mirror and multiconjugate adaptive optics system performance. These angles are typically quite small over horizontal and slant paths. This paper will begin to explore these issues which are important for predicting the performance of both passive and active horizontal and slant-path imaging systems.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Carmen J. Carrano
"Anisoplanatic performance of horizontal-path speckle imaging", Proc. SPIE 5162, Advanced Wavefront Control: Methods, Devices, and Applications, 14 (December 10, 2003); doi:10.1117/12.508082; http://dx.doi.org/10.1117/12.508082


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