A.Ju. Koziratsky, A.I. Grevtsev, M.L. Parinov, V.V. Kapitanov

At the organisation of the air laser communication line often there is a situation when level of target radiation of the transferring party falls outside the limits a dynamic range of the reception party. Therefore the photointake is exposed to influence of powerful laser radiation and it appears lighted. Considering necessity of spatial orientation of forming optical systems of subscribers against each other, existing ways of definition of a direction on a source of optical radiation (SOR) in such conditions appear not efficient. One of variants of elimination of the given contradiction is the conclusion of a matrix photodetector for limits of a plane of the focusing, leading to distribution of falling radiation on a surface of a matrix and working out of the way, allowing to define a direction on SOR in the given conditions. Direction definition on a source of optical radiation is carried out at the expense of the analysis of spatial distribution of intensity of optical radiation in a plane of a matrix photodetector and allows to remove restrictions on a dynamic range of the reception party. The being of an offered way consists in direction definition on a source of optical radiation on values of co-ordinates of photo cells of a matrix photodetector with equal target signals that allows to restore representation of distribution of intensity of optical radiation in a plane of a matrix photodetector.