Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cha%26a..31..332l&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 31, Issue 3, p. 332-340.
Astronomy and Astrophysics
Astrophysics
Scientific paper
High resolution imaging of astronomical objects based on the phase difference method consists in estimating the object and the wave front phase distribution introduced by atmospheric turbulence from one or more pairs of shortexposure images collected simultaneously in focus and out of focus. On the basis of computer simulations of the telescopic imaging system and the image acquisition process of the phase difference method, we used the signal estimates and the optimization theory to determine the objective function under a Gaussian noise model, and carried out numerical solution of the image restoration problem with the finite inner memory quasi-Newtonian method suitable for large scale unconstrained optimization. The restored results show that the present technique based on the phase difference method can effectively eliminate the influence of atmospheric turbulence and solve the problem of restoring extended astronomical objects.
Li Qiang
Shen Mang-Zuo
No associations
LandOfFree
Research on the High-resolution Imaging of Astronomical Objects Based on the Phase Difference Method 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 Research on the High-resolution Imaging of Astronomical Objects Based on the Phase Difference Method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Research on the High-resolution Imaging of Astronomical Objects Based on the Phase Difference Method will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1662517