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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) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 1991 IAU Coll V131 p6.pdf Restricted Access | Open Access | 260.14 kB | Adobe PDF | View/Open Request a copy |
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