Phase variances from triple correlation analysis

Details Phase variances from triple correlation analysis Phase variances from triple correlation analysis

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988optco..65..115r&link_type=abstract

Optics Communications (ISSN 0030-4018), vol. 65, Jan. 15, 1988, p. 115-120.

Astronomy and Astrophysics

Astronomy

Heuristic Methods, Image Correlators, Phase Switching Interferometers, Radio Astronomy, Speckle Interferometry, Noise Reduction, Spatial Resolution, Transfer Functions

Scientific paper

A simple heuristic model for the triple correlation procedure (Roddier, 1986) is extended to enable computation of the variances of bispectrum phases. The bispectrum analysis is applied to one-dimensional infrared speckle data obtained at the 2.3-m Stewart Observatory telescope for an unresolved source, validating the effectiveness of the method. Good qualitative agreement is also obtained between the measured and model bispectrum SNR. It is noted that the recovered phases of HR 1739 show structure that is not commensurate with a point source.

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