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

Matthew R. Bolcar; James R. Fienup

doi:10.1117/12.613257

23 August 2005 Method of phase diversity in multi-aperture systems utilizing individual sub-aperture control

Matthew R. Bolcar, James R. Fienup

Proceedings Volume 5896, Unconventional Imaging; 58960G (2005) https://doi.org/10.1117/12.613257
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Matthew R. Bolcar and James R. Fienup "Method of phase diversity in multi-aperture systems utilizing individual sub-aperture control", Proc. SPIE 5896, Unconventional Imaging, 58960G (23 August 2005); https://doi.org/10.1117/12.613257

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