Out-of-focus holography at the Green Bank Telescope

@article{Nikoli2007OutoffocusHA,
  title={Out-of-focus holography at the Green Bank Telescope},
  author={Bojan Nikoli{\'c} and Richard M. Prestage and Dana. S. Balser and Claire J. Chandler and Richard E. Hills},
  journal={Astronomy and Astrophysics},
  year={2007},
  volume={465},
  pages={685-693}
}
Mullard Radio Astronomy Observatory, Cavendish Laboratory, Cambridge CB3 0HE, UKthe date of receipt and acceptance should be inserted laterAbstract. We describe phase-retrieval holography measurements of the 100-m diameter Green Bank Telescope using astro-nomical sources and an astronomical receiver operating at a wavelength of 7mm. We use the technique with parameterizationof the aperture in terms of Zernike polynomials and employing a large defocus, as described by Nikolic et al. (2006… 

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