Brillouin precursor decay in dispersive attenuative materials

In this paper, peak amplitude decay of the Brillouin precursor is numerically determined. It is described by the curves for a pure dielectric and a simple fractional mixing model of a leafy foliage as a function of the relative propagation distance.Near ideal behavior is observed. Intermediate levels of the material conductivity, result in a more rapid peak amplitude decay with propagation distance, but not as severe as that for high levels of conductivity.