31 May 1994 Correction of anisoplanatic blur by using phase diversity
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A variety of clever pre- and post-detection methods have been developed to image through atmospheric turbulence. These methods have been developed and exercised primarily for use in the isoplanatic (space-invariant) imaging case. Multi-conjugate methods have been investigated for the accommodation of space-variance with compensated imaging, however multiple guidestars, wavefront sensors, and deformable mirrors are required making a practical implementation uncertain. Post-detection correction methods can be extended to the space-variant case with mosaicing methods, but such approaches provide suboptimal estimates.
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Richard G. Paxman, Richard G. Paxman, Brian J. Thelen, Brian J. Thelen, John H. Seldin, John H. Seldin, } "Correction of anisoplanatic blur by using phase diversity", Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); doi: 10.1117/12.176047; https://doi.org/10.1117/12.176047

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