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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 1 — Jan. 1, 2009
  • pp: A63–A70

Lucky imaging and aperture synthesis with low-redundancy apertures

Jennifer E. Ward, William T. Rhodes, and John T. Sheridan  »View Author Affiliations


Applied Optics, Vol. 48, Issue 1, pp. A63-A70 (2009)
http://dx.doi.org/10.1364/AO.48.000A63


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Abstract

Lucky imaging, used with some success in astronomical and even horizontal-path imaging, relies on fleeting conditions of the atmosphere that allow momentary improvements in image quality, at least in portions of an image. Aperture synthesis allows a larger aperture and, thus, a higher-resolution imaging system to be synthesized through the superposition of image spatial-frequency components gathered by cooperative combinations of smaller subapertures. A combination of lucky imaging and aperture synthesis strengthens both methods for obtaining improved images through the turbulent atmosphere. We realize the lucky imaging condition appropriate for aperture synthesis imaging for a pair of rectangular subapertures and demonstrate that this condition occurs when the signal energy associated with bandpass spatial-frequency components achieves its maximum value.

© 2008 Optical Society of America

OCIS Codes
(110.0115) Imaging systems : Imaging through turbulent media
(100.3175) Image processing : Interferometric imaging

History
Original Manuscript: June 9, 2008
Revised Manuscript: September 29, 2008
Manuscript Accepted: September 30, 2008
Published: November 19, 2008

Citation
Jennifer E. Ward, William T. Rhodes, and John T. Sheridan, "Lucky imaging and aperture synthesis with low-redundancy apertures," Appl. Opt. 48, A63-A70 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-1-A63

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