Digital hologram reconstruction of radio telescope data

Details Digital hologram reconstruction of radio telescope data Digital hologram reconstruction of radio telescope data

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apopt..16.1113k&link_type=abstract

Applied Optics, vol. 16, May 1977, p. 1113, 1114.

Computer Science

Graphics

2

Digital Techniques, Holography, Radio Telescopes, Wave Front Reconstruction, Computer Graphics, Fourier Transformation, Radio Sources (Astronomy)

Scientific paper

Optical and digital implementations of the Fourier transform as related to the reconstruction of the source distribution from relevant samples are discussed. The data used consist of observations of the double radio source Cygnus-A gathered by the Stanford five-element array. A qualitative comparison between the optical and digital methods shows that the relatively simple optical analog technique produced a reconstruction in which two sources are clearly resolvable. Other computer holographic methods would yield further improvement. Optical processing may be necessary to meet the enormous data processing requirements of future radio telescopes.

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