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Proceedings Paper

Active multi-aperture imaging through turbulence
Author(s): Nicholas J. Miller; Jeffrey J. Widiker; Paul F. McManamon; Joseph W. Haus
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Paper Abstract

We describe our Innovative Multi Aperture Gimbaless Electro-Optical (IMAGE) testbed which uses coherent detection of the complex field reflected off a diffuse target with seven hexagonally arranged apertures. The seven measured optical fields are then phased with a digital optimization algorithm to synthesize a composite image whose angular resolution exceeds that of a single aperture. This same post-detection phasing algorithm also corrects aberrations induced by imperfect optics and a turbulent atmospheric path. We present the coherent imaging sub-aperture design used in the IMAGE array as well as the design of a compact range used to perform scaled tests of the IMAGE array. We present some experimental results of imaging diffuse targets in the compact range with two phase screens which simulates a ~7[Km] propagation path through distributed atmospheric turbulence.

Paper Details

Date Published: 15 May 2012
PDF: 10 pages
Proc. SPIE 8395, Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI, 839504 (15 May 2012); doi: 10.1117/12.921160
Show Author Affiliations
Nicholas J. Miller, Univ. of Dayton (United States)
Jeffrey J. Widiker, MZA Associates Corp. (United States)
Paul F. McManamon, Univ. of Dayton (United States)
Joseph W. Haus, Univ. of Dayton (United States)

Published in SPIE Proceedings Vol. 8395:
Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI
William E. Thompson; Paul F. McManamon, Editor(s)

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