The Improvement of the Quality of Images Observed by the Turbulent Earth Atmosphere

One of the important problems of optical astronomy is the improvement of quality of images of celestial objects when observed by large ground-based telescopes. The turbulent Earth atmosphere is known to limit the resolution of the observed. On average, the resolution of recorded images is one angular second, while the diffractional - limited resolution of the telescope is better by about an order of magnitude. In present time, three main methods to deal with turbulence problem are known: the Liberia method, the Knox- Thompson method and a generalization of closure phase´s method, the method of triple correlation.