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Proceedings Paper

Method of phase diversity in multi-aperture systems utilizing individual sub-aperture control
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Paper Abstract

Multi-aperture systems allow a natural method of implementing phase diversity for the joint estimation of both pupil aberrations and an image of the object. Instead of creating diversity images by means of focus adjustments, one can actuate the individual sub-apertures of the system (e.g., with a piston phase) to introduce known phase diversity. Implementation of a nonlinear optimization routine is discussed. Through digital simulation, this paper investigates the performance of a sub-aperture piston diversity algorithm by tracking Strehl ratio and the probability and speed of convergence of the nonlinear optimization routine.

Paper Details

Date Published: 23 August 2005
PDF: 8 pages
Proc. SPIE 5896, Unconventional Imaging, 58960G (23 August 2005); doi: 10.1117/12.613257
Show Author Affiliations
Matthew R. Bolcar, The Institute of Optics, Univ. of Rochester (United States)
James R. Fienup, The Institute of Optics, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 5896:
Unconventional Imaging
Victor L. Gamiz; Paul S. Idell, Editor(s)

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