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Proceedings Paper

Image synthesis from a series of coherent frames of pupil intensity
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Paper Abstract

Since it is known that the aperture of an imaging system limits spatial its resolution, it is desirable to form larger apertures. By taking advantage of the coherence properties of laser light, it is possible to form an optical synthetic aperture array from many smaller, monolithic apertures. By doing this, one can expect to obtain higher spatial resolution than from existing monolithic apertures. Since it is difficult to recover absolute phase of an optical field, it is desirable to form the synthetic aperture without interfering the light from the sub-apertures. This paper demonstrates a method of forming images using pupil plane intensity measurements of coherently illuminated scenes; a low resolution image will also be used to supply a starting estimate for the algortihm. From this data model, a maximum likelihood estimator is formed.

Paper Details

Date Published: 4 September 2007
PDF: 12 pages
Proc. SPIE 6712, Unconventional Imaging III, 671207 (4 September 2007); doi: 10.1117/12.727198
Show Author Affiliations
James D. Phillips, Air Force Institute of Technology (United States)
Stephen C. Cain, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6712:
Unconventional Imaging III
Jean J. Dolne; Victor L. Gamiz; Paul S. Idell, Editor(s)

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