Hubble Space Telescope characterized by using phase-retrieval algorithms.

  title={Hubble Space Telescope characterized by using phase-retrieval algorithms.},
  author={James R. Fienup and Joseph C. Marron and Timothy J. Schulz and John H. Seldin},
  journal={Applied optics},
  volume={32 10},
We describe several results characterizing the Hubble Space Telescope from measured point spread functions by using phase-retrieval algorithms. The Cramer-Rao lower bounds show that point spread functions taken well out of focus result in smaller errors when aberrations are estimated and that, for those images, photon noise is not a limiting factor. Reconstruction experiments with both simulated and real data show that the calculation of wave-front propagation by the retrieval algorithms must… CONTINUE READING


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