Aperture synthesis in radio astronomy

Details Aperture synthesis in radio astronomy Aperture synthesis in radio astronomy

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jopt...10..354w&link_type=abstract

Journal of Optics, vol. 10, Nov.-Dec. 1979, p. 354-358. In French.

Astronomy and Astrophysics

Astronomy

Interferometry, Radio Astronomy, Synthetic Apertures, Earth Rotation, Fourier Transformation, Luminous Intensity, Sky Brightness

Scientific paper

The principles of aperture synthesis are described and attention is given to the operation of a two-element interferometer based on this procedure. The two-element device samples the Fourier transform of the sky brightness distribution. Consideration is given to the case of earth rotation synthesis with emphasis on east-west interferometers. Some natural limitations of aperture synthesis are described along with ways to overcome them. The image restitution process is considered with emphasis on incomplete synthesis and degraded phase.

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