Efficiency of the focusing of a reversed wave field in atmospheric turbulence in the presence of wind

Reversed-field focusing efficiency in atmospheric turbulence is calculated in conditions of source motion and irregularity drift with wind velocity. It is shown that the reversal efficiency is determined by the smaller of two quantities (referred to the spherical-wave coherence radius): (1) the aperture radius of the reversing mirror, and (2) the absolute value of the difference between the displacement of the source over the time of wave transit to the mirror and back and the drift of irregularities over this time period. Numerical results show that the effect of turbulent fluctuations on reversal efficiency is negligible up to distances of the order of 1 km. Under certain conditions the motion of the source can fully compensate for phase distortions due to wind drift.