Statistical characteristics of Alfven and hydromagnetic gradient waves in a randomly inhomogeneous plasma

On the Distortion of a Mean Field Pulse in a Nonstationary Medium

“…Joint action of dispersion and nonstationarity causes a change of the phase di †erences between various spectral components that leads to a distortion of the pulse. The inÑuence of multiple-scattering on pulse deformation was studied recently by means of a statistical moment method [13], which is valid at strong Ñuctuations of the wave amplitude, in a dispersive medium [14]. Therefore the distortion of pulse envelopes in dispersive media (such as : ionosphere, powders, etc.)…”