The split-step Fourier-transform algorithm for numerical simulation
of wave propagation in a turbulent atmosphere is refined to correctly
include the effects of large-scale phase fluctuations that are
important for imaging problems and many beam-wave problems such as
focused laser beams and beam spreading. The results of the improved
algorithm are similar to the results of the traditional algorithm for
the performance of coherent Doppler lidar and for plane-wave intensity
statistics because the effects of large-scale turbulence are less
important. The series solution for coherent Doppler lidar
performance converges slowly to the results from simulation.
© 2000 Optical Society of America
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