Optimal Image Reconstruction in Radio Interferometry

Details Optimal Image Reconstruction in Radio Interferometry Optimal Image Reconstruction in Radio Interferometry

2006-04-14

arxiv.org/abs/astro-ph/0604331v1

Astrophys.J.Suppl. 162 (2006) 401-416

Astronomy and Astrophysics

Astrophysics

41 pages, 11 figures. High resolution figures 8 and 9 available at http://www.astro.uiuc.edu/~bwandelt/SuttonWandelt2006

Scientific paper

10.1086/498571

We introduce a method for analyzing radio interferometry data which produces maps which are optimal in the Bayesian sense of maximum posterior probability density, given certain prior assumptions. It is similar to maximum entropy techniques, but with an exact accounting of the multiplicity instead of the usual approximation involving Stirling's formula. It also incorporates an Occam factor, automatically limiting the effective amount of detail in the map to that justified by the data. We use Gibbs sampling to determine, to any desired degree of accuracy, the multi-dimensional posterior density distribution. From this we can construct a mean posterior map and other measures of the posterior density, including confidence limits on any well-defined function of the posterior map.

Affiliated with

Also associated with

No associations

Rating

Optimal Image Reconstruction in Radio Interferometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optimal Image Reconstruction in Radio Interferometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal Image Reconstruction in Radio Interferometry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-623731