A comparison of two self-calibration techniques for radio interferometric data

Details A comparison of two self-calibration techniques for radio interferometric data A comparison of two self-calibration techniques for radio interferometric data

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...189..361y&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 189, no. 1-2, Jan. 1988, p. 361-364.

Astronomy and Astrophysics

Astrophysics

4

Calibrating, Data Reduction, Image Processing, Radio Interferometers, Astronomical Photography, Data Bases, Instrument Errors, Redundancy, Very Large Array (Vla)

Scientific paper

A test was made to compare the self-calibration facilities of the "AIPS" and the "DWARF" package (developed at NRAO and the Netherlands Foundation for Radio Astronomy respectively) on Westerbork data. Two identical data bases of 3C 371 at 1401 MHz were used for the purpose. The main difference between the two techniques is that DWARF uses information extracted from redundant baselines present in the Westerbork array to correct the instrumental errors while in AIPS no special use of redundancy information is made. The comparison shows that effective use of redundancy information, as is done in the DWARF package, can significantly improve the image quality.

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