Michael Egan, National Geospatial-Intelligence Agency
Keywords:
Abstract:
In previous work we have demonstrated the ability of the algorithm developed by Magain, Courbin, and Sohy (MCS, ApJ 2008) to resolve point sources and filamentary extended sources that have positions closer than the traditional 1.22D/? diffraction limit of an optical system. The efficacy of the technique depends on a number of factors, including the signal to noise ratio (SNR) of the sources, the blackness” of the overall image, knowledge of the original system point spread function, etc. In this paper we will explore the effect of each of these parameters on the results of the algorithm to determine the point at which positions and amplitudes of sources reconstructed using the MCS algorithm become unreliable. Results from simulated data will be presented, as well as reconstructions of astronomical imagery from the Midcourse Space Experiment that will be compared with the higher resolution “truth” data from the Spitzer Space Telescope.
Date of Conference: September 1-4. 2009
Track: