Determination of closure phase in noisy conditions

Woan, G. and Dufflett-Smith, P.J. (1988) Determination of closure phase in noisy conditions. Astronomy and Astrophysics, 198(1-2), p. 375.

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Two methods of `phase averaging' are considered, and applied to the processing of both conventional and closure phases. One involves the assignment of the phases or closure phases to unit vectors before averaging, the other preserves a link with the original visibility vectors from which the phases are derived. It is shown that the second method is as much as a factor of two better than the first, under very noisy conditions. Key words: data analysis - image processing - numerical methods

Item Type:Articles
Glasgow Author(s) Enlighten ID:Woan, Professor Graham
Authors: Woan, G., and Dufflett-Smith, P.J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astronomy and Astrophysics
Publisher:EDP Sciences

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