Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1351..738g&link_type=abstract
IN: Digital image synthesis and inverse optics; Proceedings of the Meeting, San Diego, CA, July 9-13, 1990 (A92-18776 05-74). Be
Astronomy and Astrophysics
Astronomy
1
Fourier Transformation, Image Reconstruction, Point Spread Functions, Radio Interferometers, Radio Telescopes, Phase Error, Radio Astronomy, Speckle Interferometry, Synthetic Apertures, Very Long Base Interferometry
Scientific paper
The principles of image formation using a dilute multiple-telescope interferometer is considered. In particular, the requirements for an instrument capable of providing a unique reconstruction of object Fourier phases and instrumental phase errors from a single 'snapshot' of data are examined. The roles of redundancy in the telescope array, the imposition of the positivity requirement in data inversion, the quality of the instrument point spread function, and the stability of the data inversion are taken into account.
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