Source-noise in radio synthesis images
- 1 January 1991
- journal article
- other
- Published by Cambridge University Press (CUP) in International Astronomical Union Colloquium
- Vol. 131, 6-9
- https://doi.org/10.1017/s0252921100012987
Abstract
We discuss the distribution of source- and receiver- noise in radio synthesis images and show 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. We show 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.Keywords
This publication has 1 reference indexed in Scilit:
- Self-noise in interferometers - Radio and infraredThe Astronomical Journal, 1989