title: Speckle imaging through turbulent atmosphere based on adaptable pupil segmentation.
abstract: We report on the first results to our knowledge obtained with adaptable multiaperture imaging through turbulence on a horizontal atmospheric path. We show that the resolution can be improved by adaptively matching the size of the subaperture to the characteristic size of the turbulence. Further improvement is achieved by the deconvolution of a number of subimages registered simultaneously through multiple subapertures. Different implementations of multiaperture geometry, including pupil multiplication, pupil image sampling, and a plenoptic telescope, are considered. Resolution improvement has been demonstrated on a ∼550 m horizontal turbulent path, using a combination of aperture sampling, speckle image processing, and, optionally, frame selection.
authors.affiliation: Flexible Optical BV, Polakweg 10-11, 2288 GG, Rijswijk, The Netherlands. oko@okotech.com
authors.forename: Mikhail
authors.initials: M
authors.lastname: Loktev
authors.forename: Oleg
authors.initials: O
authors.lastname: Soloviev
authors.forename: Svyatoslav
authors.initials: S
authors.lastname: Savenko
authors.forename: Gleb
authors.initials: G
authors.lastname: Vdovin