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Study of laser transmitter auto-tracking algorithms for free space optics links

Results of numerical simulation of automatic tracking algorithms for the free space optic (FSO) laser bundle spreading in a turbulent atmosphere from the transmitter of one subscriber to the transducer of other subscriber are presented. A model of the system and a simulation program are created and different adaptive correction algorithms are analyzed. It is shown that the character of an algorithm and its parameters significantly affect the system behavior. The results of numerical study have been obtained for a 1-beam laser.