Computer Science
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1237..154s&link_type=abstract
IN: Amplitude and intensity spatial interferometry; Proceedings of the Meeting, Tucson, AZ, Feb. 14-16, 1990 (A91-30676 12-89).
Computer Science
4
Image Reconstruction, Imaging Techniques, Infrared Interferometers, Infrared Telescopes, Algorithms, Color, Diffraction Patterns, Wavelengths
Scientific paper
Hybrid mapping techniques originally developed for radio aperture synthesis imaging are applied to the case of image reconstruction in optical interferometry. It is found that the use of redundant baselines with hybrid mapping can increase the fraction of phase information that is obtained in a realistic optical experiment to approach that obtained in a typical multistation radio experiment. However, this additional information does not greatly improve the quality of the resulting maps in cases with good coverage of the u-v plane. Thus, in constructing an experiment with redundant baselines, the adequacy of the u-v coverage should be considered along with any desire for redundancy. The use of phase differences between two colors in a dispersed fringe for hybrid mapping experiments are investigated and it is found that maps may be made of comparable quality to hybrid maps with phase closure.
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