Phaseless aperture synthesis

Details Phaseless aperture synthesis Phaseless aperture synthesis

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.182..411b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 182, Feb. 1978, p. 411-422.

Astronomy and Astrophysics

Astronomy

17

Astronomical Maps, Interstellar Radiation, Radio Astronomy, Radio Interferometers, Astronomical Models, Fourier Transformation, Iterative Solution, Point Sources, Very Long Base Interferometry

Scientific paper

Two techniques of general use in radio-astronomical interferometry are presented for analyzing aperture-synthesis data without employing phase information. In the first, a trial map is derived from observed amplitudes alone; in the second, the true distribution of brightness is deduced from the trial map by an iterative procedure. These techniques are similar to those used in solving molecular structures from X-ray diffraction patterns. A practical test, using data from the 5C 7 survey, is presented.

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