Astron. Astrophys. Suppl. Ser. 139, 179-181
R. Ramesh - K.R. Subramanian - Ch.V. Sastry
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Indian Institute of Astrophysics, Bangalore 560 034, India
Received January 4; accepted June 9, 1999
A calibration scheme based on closure and redundancy techniques is described for correcting the phase errors in the complex visibilities observed with a T-shaped radio interferometer array. Practical details of the scheme are illustrated with reference to the Gauribidanur radioheliograph (GRH).
Key words: radio telescopes -- interferometry -- calibration -- data analysis
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