Spectral broadening of an acoustic pulse propagating through turbulence

摘要: The following analysis develops the equation for scattered acoustic power and spectral broadening of a plane pulse propagating through atmospheric turbulence that is moving with uniform wind transverse to beam. Assuming weak single scattering, resulting propagation proportional velocity divided by outer scale independent strength total range. Further, medium variable shear (e.g., vertical path) determined primarily highest ratio encountered pulse.