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Atmospheric
Laser Turbulence Model
This software useful
for the prediction of link scintillation,
reliability of lasercom links, development
of parameters for link budget, receiver
operation characteristics, and reliability
of laser designators.This software package
uses experimentally-verified mathematical
models for Gaussian-beam wave propagation
to calculate various beam characteristics
in the presence of atmospheric turbulence.
Conditions of atmospheric turbulence can
range over weak to strong fluctuations.
This
package provides accurate, speedy calculations
for any horizontal propagation path in which
the atmospheric index of refraction structure
parameter can be taken as constant. Two
choices of atmospheric model are available
to the user – the Kolmogorov spectrum,
which is based only on the atmospheric structure
parameter; or the more accurate modified
atmospheric spectrum, which exhibits the
“bump” at high wave numbers,
and is based on the atmospheric structure
parameter, inner scale, and outer scale.
The beam-wave models that are used for these
calculations are valid for optical frequencies
ranging from the visible portion of the
electromagnetic spectrum to the far-IR regime.
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