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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2377

Title: Source-noise in radio synthesis images
Authors: Anantharamaiah, K.R.
Deshpande, A.A.
Radhakrishnan, V.
Ekers, R.D.
Cornwell, T.J.
Goss, W.M.
Keywords: ELECTROMAGNETIC NOISE
IMAGE CORRELATORS
NOISE PROPAGATION
RADIO TELESCOPES
SIDELOBE REDUCTION
RADIO ANTENNAS
SYNTHETIC ARRAYS
Issue Date: 1991
Publisher: Astronomical Society of Pacific
Citation: IAU Colloquium, 1991, Vol.131, p6-9
Abstract: The distribution of source- and receiver-noise in radio synthesis images is discussed, and it is shown that the source-noise is maximum at the position of the source but also appears in the off-source region because of the sidelobes. Analytical expressions are derived for the rms noise at any location of both 'total-power' and 'correlation' images. It is shown that under certain conditions, deconvolution can remove the source noise from the off-source region in snap-shot images. Some of the results are verified experimentally.
Description: Open Access. Radio interferometry: Theory, techniques, and applications; Proceedings of the 131st IAU Colloquium, Socorro, NM, Oct. 8-12, 1990.
URI: http://hdl.handle.net/2289/2377
Alternative Location: http://adsabs.harvard.edu/cgi-bin/bib_query?1991ASPC...19....6A
Copyright: 1991 Astronomical Society of the Pacific
Appears in Collections:Research Papers (A&A)

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