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Proceedings Paper

Speckle imaging over horizontal paths
Author(s): Carmen J. Carrano
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Paper Abstract

Atmospheric aberrations reduce the resolution and contrast in surveillance images recorded over horizontal or slant paths. This paper describes our recent horizontal and slant-path imaging experiments of extended scenes as well as the results obtained using speckle imaging. The experiments were performed with an 8-inch diameter telescope placed on either a rooftop or hillside and cover ranges of interest from 0.5 km up to 10 km. The scenery includes resolution targets, people, vehicles, and other structures. The improvement in image quality using speckle imaging is dramatic in many cases, and depends significantly upon the atmospheric conditions. We quantify resolution improvement through modulation transfer function measurement comparisons.

Paper Details

Date Published: 6 November 2002
PDF: 12 pages
Proc. SPIE 4825, High-Resolution Wavefront Control: Methods, Devices, and Applications IV, (6 November 2002); doi: 10.1117/12.453519
Show Author Affiliations
Carmen J. Carrano, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 4825:
High-Resolution Wavefront Control: Methods, Devices, and Applications IV
John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen; Sergio R. Restaino; Robert K. Tyson, Editor(s)

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