Radio-interferometric imaging of weak objects in conditions of poor phase stability - the relationship between speckle masking and phase closure methods

Astronomy and Astrophysics – Astronomy

Scientific paper

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36

Imaging Techniques, Phase Error, Radio Astronomy, Space Observations (From Earth), Speckle Patterns, Algorithms, Fourier Transformation, Radio Interferometers

Scientific paper

The speckle masking and phase closure methods of phase correction in
astronomy are shown to be intimately related. We also demonstrate how
speckle masking can be adapted to allow reliable radio-interferometric
imaging of weaker objects than possible with current phase closure or
self-calibration methods.

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