The Account of Influence of Phase Errors of the Aperture of the Radio Telescope on Recovery of the Image of the Sun in 3 mm Range

Abstract

The nonstationary components of radiation of active areas of a solar surface are the important aim of investigation by solar radio astronomy at millimeter (mm) wave range. Radio astronomical observations of a solar surface determines the sizes, coordinates and the brightness temperature of active areas. The spatial resolution of the radio telescope limits the accuracy of definition of these parameters. It is determined by a width of directional diagram of antenna system. However there is possibility to increase a spatial resolution of radio astronomical researches at the expense of nonlinear iterative methods of recovery of the image.