Title :
Advances in Calibration and Imaging Techniques in Radio Interferometry
Author :
Rau, Urvashi ; Bhatnagar, Sanjay ; Voronkov, Maxim A. ; Cornwell, Tim J.
Author_Institution :
Dept. of Phys., New Mexico Inst. of Min. & Technol., Socorro, NM, USA
Abstract :
This paper summarizes some of the major calibration and image reconstruction techniques used in radio interferometry and describes them in a common mathematical framework. The use of this framework has a number of benefits, ranging from clarification of the fundamentals, use of standard numerical optimization techniques, and generalization or specialization to new algorithms.
Keywords :
astronomical image processing; astronomical techniques; interferometry; radiotelescopes; ASKAP; Australian Square Kilometre Array Pathfinder; EVLA; Expanded Very Large Array; Karoo Array Telescope; LOFAR; Low Frequency Array; MeerKAT; SKA; Square Kilometre Array; data processing; fast Fourier transform; image reconstruction technique; radio interferometry; radio synthesis telescope; standard numerical optimization technique; Antenna measurements; Aperture antennas; Calibration; Electric variables measurement; Equations; Extraterrestrial measurements; Frequency; Frequency measurement; Image reconstruction; Instruments; Radio astronomy; Radio interferometry; Telescopes; Time measurement; Algorithms; calibration; computing; imaging; radio interferometry;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/JPROC.2009.2014853
