Error reduction in atmospheric laser systems

A calculation is made of the probability of detection of a train of pulses transmitted by the atmosphere. It is shown that the error statistics is governed by the correlation time of atmospheric fluctuations of the radiation and the most probable duration of an error packet is of the order of the correlation time. The error can be reduced by redundancy of the system in respect of its pass band. Examples are given of methods for reducing the error in atmospheric laser systems and of applications of these methods.