ABSTRACT
It was shown in the last chapter that, under certain conditions, radiation scattered by a random phase-changing screen has the same Gaussian statistical properties as those predicted by the particle model of Chapter 4 and that under these special conditions the scattered field is effectively a random walk of many independent contributions. However, the random phase screen model also makes quantitative predictions for the statistical properties of the scattered wave field in many non-Gaussian Fresnel and Fraunhofer configurations that are commonly encountered in practical applications. A study of these non-Gaussian regimes provides many useful insights and has proved to be a valuable aid to the development of non-Gaussian models for the statistics of scattered waves.
