RRI Banner

Source-noise in radio synthesis images

Thumbnail Image

Date

1991

Authors






Journal Title

Journal ISSN

Volume Title

Publisher

Astronomical Society of Pacific

DOI

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.

Keywords

ELECTROMAGNETIC NOISE , IMAGE CORRELATORS , NOISE PROPAGATION , RADIO TELESCOPES , SIDELOBE REDUCTION , RADIO ANTENNAS , SYNTHETIC ARRAYS

Citation

IAU Colloquium, 1991, Vol.131, p6-9

URI

http://hdl.handle.net/2289/2377

Collections

Research Papers (A&A)

Endorsement

Review

Supplemented By

Referenced By

Rights and licensing

1991 Astronomical Society of the Pacific