Performance of phase diversity phase retrieval for horizontal path long-range imaging
conference paper
Long range imaging is limited by the optical aberrations produced by the light propagation through the atmosphere. These aberrations will very often limit the angular resolution of the instrument below its theoretical diffraction limit. Various wavefront sensing techniques have been developed over the years to measure the wavefront distortion and correct it. In this paper we investigate the use of phase diversity phase retrieval for the correction of images aberrated by atmospheric turbulence. We describe the implementation of the system and the image correction. We present the reconstruction results and evaluate the performance of the approach for horizontal path imaging with various turbulence strength in the dataset collected during the NATO SET-304 data collection trial. (C) 2023 SPIE.
Topics
image reconstructionPhase diversityshifting focusturbulence mitigationAberrationsAtmospheric thermodynamicsAtmospheric turbulenceDiffractionWavefrontsAngular resolutionDiffraction limitsHorizontal pathImages reconstructionPerformancePhase retrievalPhase-diversityRange imagingShifting focusTurbulence mitigationImage reconstruction
TNO Identifier
992223
ISSN
0277786X
ISBN
9781510666917
Publisher
SPIE
Article nr.
127310B
Source title
Proceedings of SPIE - The International Society for Optical Engineering
Editor(s)
Stein K.Gladysz S.
Files
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