We study the statistical moments of intensity and log intensity for waves in three-dimensional random media with pure power-law spectra. Results from both asymptotic calculations and numerical simulations are presented for an incident plane wave through multiple phase screens with a power-law index of 1.7. An improved asymptotic scheme is applied to the asymptotic calculation. This scheme reorganizes the conventional strong-scattering series into a new series that. converges more rapidly. The first-order term in the new series is often sufficient for quantitatively useful answers in the strong-scattering regime.
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Dashen et al. (1993) studied this question.
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